10890538 has 4 divisors (see below), whose sum is σ = 16335810. Its totient is φ = 5445268.

The previous prime is 10890533. The next prime is 10890547. The reversal of 10890538 is 83509801.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 9443329 + 1447209 = 3073^2 + 1203^2 .

It is not an unprimeable number, because it can be changed into a prime (10890533) by changing a digit.

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 as a sum of consecutive naturals, namely, 2722633 + ... + 2722636.

Almost surely, 2^10890538 is an apocalyptic number.

10890538 is a deficient number, since it is larger than the sum of its proper divisors (5445272).

10890538 is an equidigital number, since it uses as much as digits as its factorization.

10890538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5445271.

The product of its (nonzero) digits is 8640, while the sum is 34.

The square root of 10890538 is about 3300.0815141448. The cubic root of 10890538 is about 221.6578475270.

The spelling of 10890538 in words is "ten million, eight hundred ninety thousand, five hundred thirty-eight".