64262340 has 72 divisors (see below), whose sum is σ = 200218200. Its totient is φ = 16671744.

The previous prime is 64262333. The next prime is 64262357. The reversal of 64262340 is 4326246.

64262340 is a `hidden beast` number, since 6 + 426 + 234 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 6471936 + 57790404 = 2544^2 + 7602^2 .

It is a congruent number.

It is an unprimeable number.

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, 1836 + ... + 11484.

Almost surely, 2^64262340 is an apocalyptic number.

64262340 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 64262340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100109100).

64262340 is an abundant number, since it is smaller than the sum of its proper divisors (135955860).

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

64262340 is a wasteful number, since it uses less digits than its factorization.

64262340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9701 (or 9696 counting only the distinct ones).

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

The square root of 64262340 is about 8016.3794820355. The cubic root of 64262340 is about 400.5457965931.

Adding to 64262340 its reverse (4326246), we get a palindrome (68588586).

The spelling of 64262340 in words is "sixty-four million, two hundred sixty-two thousand, three hundred forty".