10491906 has 16 divisors (see below), whose sum is σ = 21103200. Its totient is φ = 3477408.

The previous prime is 10491869. The next prime is 10491913. The reversal of 10491906 is 60919401.

It is a super-2 number, since 2×10491906² = 220160183025672, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3811 + ... + 5958.

It is an arithmetic number, because the mean of its divisors is an integer number (1318950).

Almost surely, 2^10491906 is an apocalyptic number.

10491906 is an abundant number, since it is smaller than the sum of its proper divisors (10611294).

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

10491906 is a wasteful number, since it uses less digits than its factorization.

10491906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9953.

The product of its (nonzero) digits is 1944, while the sum is 30.

The square root of 10491906 is about 3239.1211771096. The cubic root of 10491906 is about 218.9196761369.

The spelling of 10491906 in words is "ten million, four hundred ninety-one thousand, nine hundred six".