10405690 has 16 divisors (see below), whose sum is σ = 18837000. Its totient is φ = 4138560.

The previous prime is 10405687. The next prime is 10405691. The reversal of 10405690 is 9650401.

It can be written as a sum of positive squares in 4 ways, for example, as 1885129 + 8520561 = 1373^2 + 2919^2 .

It is a super-2 number, since 2×10405690² = 216556768752200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10405691) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1065 + ... + 4684.

Almost surely, 2^10405690 is an apocalyptic number.

10405690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10405690 is a deficient number, since it is larger than the sum of its proper divisors (8431310).

10405690 is a wasteful number, since it uses less digits than its factorization.

10405690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5937.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 10405690 is about 3225.7851757363. The cubic root of 10405690 is about 218.3183772104.

The spelling of 10405690 in words is "ten million, four hundred five thousand, six hundred ninety".