64190402 has 16 divisors (see below), whose sum is σ = 102632832. Its totient is φ = 30004800.

The previous prime is 64190377. The next prime is 64190411. The reversal of 64190402 is 20409146.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1118 + ... + 11385.

It is an arithmetic number, because the mean of its divisors is an integer number (6414552).

Almost surely, 2^64190402 is an apocalyptic number.

64190402 is a deficient number, since it is larger than the sum of its proper divisors (38442430).

64190402 is a wasteful number, since it uses less digits than its factorization.

64190402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12673.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 64190402 is about 8011.8912873304. The cubic root of 64190402 is about 400.3962781128.

Adding to 64190402 its reverse (20409146), we get a palindrome (84599548).

The spelling of 64190402 in words is "sixty-four million, one hundred ninety thousand, four hundred two".