10640464 has 10 divisors (see below), whose sum is σ = 20615930. Its totient is φ = 5320224.

The previous prime is 10640449. The next prime is 10640489. The reversal of 10640464 is 46404601.

It can be written as a sum of positive squares in only one way, i.e., 7884864 + 2755600 = 2808^2 + 1660^2 .

It is a super-2 number, since 2×10640464² = 226438948270592, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 332499 + ... + 332530.

It is an arithmetic number, because the mean of its divisors is an integer number (2061593).

Almost surely, 2^10640464 is an apocalyptic number.

It is an amenable number.

10640464 is a deficient number, since it is larger than the sum of its proper divisors (9975466).

10640464 is an equidigital number, since it uses as much as digits as its factorization.

10640464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 665037 (or 665031 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 10640464 is about 3261.9724094480. The cubic root of 10640464 is about 219.9480869247.

The spelling of 10640464 in words is "ten million, six hundred forty thousand, four hundred sixty-four".