10400090 has 32 divisors (see below), whose sum is σ = 20015424. Its totient is φ = 3877120.

The previous prime is 10400077. The next prime is 10400123. The reversal of 10400090 is 9000401.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22037 + ... + 22503.

It is an arithmetic number, because the mean of its divisors is an integer number (625482).

Almost surely, 2^10400090 is an apocalyptic number.

10400090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10400090 is a deficient number, since it is larger than the sum of its proper divisors (9615334).

10400090 is a wasteful number, since it uses less digits than its factorization.

10400090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 622.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 10400090 is about 3224.9170531969. The cubic root of 10400090 is about 218.2792062601.

Adding to 10400090 its reverse (9000401), we get a palindrome (19400491).

The spelling of 10400090 in words is "ten million, four hundred thousand, ninety".