64402242 has 8 divisors (see below), whose sum is σ = 128804496. Its totient is φ = 21467412.

The previous prime is 64402213. The next prime is 64402249. The reversal of 64402242 is 24220446.

It is a sphenic number, since it is the product of 3 distinct primes.

64402242 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (64402249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5366848 + ... + 5366859.

It is an arithmetic number, because the mean of its divisors is an integer number (16100562).

Almost surely, 2^64402242 is an apocalyptic number.

64402242 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

64402242 is a wasteful number, since it uses less digits than its factorization.

64402242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10733712.

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 64402242 is about 8025.1007470312. The cubic root of 64402242 is about 400.8362546437.

Adding to 64402242 its reverse (24220446), we get a palindrome (88622688).

The spelling of 64402242 in words is "sixty-four million, four hundred two thousand, two hundred forty-two".