64632426 has 32 divisors (see below), whose sum is σ = 132572160. Its totient is φ = 20996976.

The previous prime is 64632409. The next prime is 64632437. The reversal of 64632426 is 62423646.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 117885 + ... + 118431.

It is an arithmetic number, because the mean of its divisors is an integer number (4142880).

Almost surely, 2^64632426 is an apocalyptic number.

64632426 is an abundant number, since it is smaller than the sum of its proper divisors (67939734).

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

64632426 is a wasteful number, since it uses less digits than its factorization.

64632426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1018.

The product of its digits is 41472, while the sum is 33.

The square root of 64632426 is about 8039.4294573682. The cubic root of 64632426 is about 401.3132379635.

The spelling of 64632426 in words is "sixty-four million, six hundred thirty-two thousand, four hundred twenty-six".