10640744 has 8 divisors (see below), whose sum is σ = 19951410. Its totient is φ = 5320368.

The previous prime is 10640731. The next prime is 10640761. The reversal of 10640744 is 44704601.

It can be written as a sum of positive squares in only one way, i.e., 10640644 + 100 = 3262^2 + 10^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×10640744² = 226450865747072, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 665039 + ... + 665054.

Almost surely, 2^10640744 is an apocalyptic number.

It is an amenable number.

10640744 is a deficient number, since it is larger than the sum of its proper divisors (9310666).

10640744 is a wasteful number, since it uses less digits than its factorization.

10640744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1330099 (or 1330095 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 10640744 is about 3262.0153279836. The cubic root of 10640744 is about 219.9500161928.

The spelling of 10640744 in words is "ten million, six hundred forty thousand, seven hundred forty-four".