10491808 has 12 divisors (see below), whose sum is σ = 20655810. Its totient is φ = 5245888.

The previous prime is 10491799. The next prime is 10491809. The reversal of 10491808 is 80819401.

It can be written as a sum of positive squares in only one way, i.e., 10419984 + 71824 = 3228^2 + 268^2 .

It is a super-2 number, since 2×10491808² = 220156070217728, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10491808.

It is not an unprimeable number, because it can be changed into a prime (10491809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 163903 + ... + 163966.

Almost surely, 2^10491808 is an apocalyptic number.

It is an amenable number.

10491808 is a deficient number, since it is larger than the sum of its proper divisors (10164002).

10491808 is an equidigital number, since it uses as much as digits as its factorization.

10491808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327879 (or 327871 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 31.

The square root of 10491808 is about 3239.1060495143. The cubic root of 10491808 is about 218.9189945259.

The spelling of 10491808 in words is "ten million, four hundred ninety-one thousand, eight hundred eight".