10691490 has 32 divisors (see below), whose sum is σ = 27011520. Its totient is φ = 2700864.

The previous prime is 10691467. The next prime is 10691501. The reversal of 10691490 is 9419601.

It is a super-2 number, since 2×10691490² = 228615916840200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8809 + ... + 9948.

It is an arithmetic number, because the mean of its divisors is an integer number (844110).

Almost surely, 2^10691490 is an apocalyptic number.

10691490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10691490 is an abundant number, since it is smaller than the sum of its proper divisors (16320030).

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

10691490 is a wasteful number, since it uses less digits than its factorization.

10691490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18786.

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

The square root of 10691490 is about 3269.7843965620. The cubic root of 10691490 is about 220.2991110519.

The spelling of 10691490 in words is "ten million, six hundred ninety-one thousand, four hundred ninety".