64362240 has 216 divisors, whose sum is σ = 230219808. Its totient is φ = 16588800.

The previous prime is 64362239. The next prime is 64362241. The reversal of 64362240 is 4226346.

64362240 is a `hidden beast` number, since 6 + 436 + 224 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (64362239) and next prime (64362241).

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64362241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 426165 + ... + 426315.

Almost surely, 2^64362240 is an apocalyptic number.

64362240 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64362240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115109904).

64362240 is an abundant number, since it is smaller than the sum of its proper divisors (165857568).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64362240 is a wasteful number, since it uses less digits than its factorization.

64362240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215 (or 198 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

The square root of 64362240 is about 8022.6080547413. The cubic root of 64362240 is about 400.7532473225.

Adding to 64362240 its reverse (4226346), we get a palindrome (68588586).

The spelling of 64362240 in words is "sixty-four million, three hundred sixty-two thousand, two hundred forty".