64401368 has 16 divisors (see below), whose sum is σ = 121926480. Its totient is φ = 31887648.

The previous prime is 64401361. The next prime is 64401383. The reversal of 64401368 is 86310446.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64401361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38255 + ... + 39902.

It is an arithmetic number, because the mean of its divisors is an integer number (7620405).

Almost surely, 2^64401368 is an apocalyptic number.

It is an amenable number.

64401368 is a deficient number, since it is larger than the sum of its proper divisors (57525112).

64401368 is a wasteful number, since it uses less digits than its factorization.

64401368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78266 (or 78262 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 64401368 is about 8025.0462927014. The cubic root of 64401368 is about 400.8344413918.

The spelling of 64401368 in words is "sixty-four million, four hundred one thousand, three hundred sixty-eight".