64009402 has 8 divisors (see below), whose sum is σ = 96083136. Its totient is φ = 31981692.

The previous prime is 64009399. The next prime is 64009417. The reversal of 64009402 is 20490046.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7788 + ... + 13735.

It is an arithmetic number, because the mean of its divisors is an integer number (12010392).

Almost surely, 2^64009402 is an apocalyptic number.

64009402 is a deficient number, since it is larger than the sum of its proper divisors (32073734).

64009402 is a wasteful number, since it uses less digits than its factorization.

64009402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23012.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 64009402 is about 8000.5876034201. The cubic root of 64009402 is about 400.0195865409.

Adding to 64009402 its reverse (20490046), we get a palindrome (84499448).

The spelling of 64009402 in words is "sixty-four million, nine thousand, four hundred two".