10641990 has 32 divisors (see below), whose sum is σ = 26366976. Its totient is φ = 2746080.

The previous prime is 10641937. The next prime is 10642039. The reversal of 10641990 is 9914601.

It is a super-2 number, since 2×10641990² = 226503902320200, which contains 22 as substring.

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

It is a congruent 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, 4792 + ... + 6651.

It is an arithmetic number, because the mean of its divisors is an integer number (823968).

Almost surely, 2^10641990 is an apocalyptic number.

10641990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10641990 is an abundant number, since it is smaller than the sum of its proper divisors (15724986).

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

10641990 is a wasteful number, since it uses less digits than its factorization.

10641990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11484.

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

The square root of 10641990 is about 3262.2063086200. The cubic root of 10641990 is about 219.9586010256.

The spelling of 10641990 in words is "ten million, six hundred forty-one thousand, nine hundred ninety".