10920390 has 32 divisors (see below), whose sum is σ = 28226016. Its totient is φ = 2688000.

The previous prime is 10920367. The next prime is 10920431. The reversal of 10920390 is 9302901.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 10920390.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13611 + ... + 14390.

It is an arithmetic number, because the mean of its divisors is an integer number (882063).

Almost surely, 2^10920390 is an apocalyptic number.

10920390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10920390 is an abundant number, since it is smaller than the sum of its proper divisors (17305626).

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

10920390 is a wasteful number, since it uses less digits than its factorization.

10920390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28024.

The product of its (nonzero) digits is 486, while the sum is 24.

The square root of 10920390 is about 3304.6013375292. The cubic root of 10920390 is about 221.8601911693.

The spelling of 10920390 in words is "ten million, nine hundred twenty thousand, three hundred ninety".