64472046 has 16 divisors (see below), whose sum is σ = 133390800. Its totient is φ = 20749568.

The previous prime is 64472039. The next prime is 64472071. The reversal of 64472046 is 64027446.

It is a super-2 number, since 2×64472046² = 8313289430852232, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 64471998 and 64472016.

It is a congruent number.

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, 185091 + ... + 185438.

It is an arithmetic number, because the mean of its divisors is an integer number (8336925).

Almost surely, 2^64472046 is an apocalyptic number.

64472046 is an abundant number, since it is smaller than the sum of its proper divisors (68918754).

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

64472046 is a wasteful number, since it uses less digits than its factorization.

64472046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370563.

The product of its (nonzero) digits is 32256, while the sum is 33.

The square root of 64472046 is about 8029.4486734769. The cubic root of 64472046 is about 400.9810211933.

The spelling of 64472046 in words is "sixty-four million, four hundred seventy-two thousand, forty-six".