26161090 has 16 divisors (see below), whose sum is σ = 47523960. Its totient is φ = 10368000.

The previous prime is 26161063. The next prime is 26161123. The reversal of 26161090 is 9016162.

It can be written as a sum of positive squares in 4 ways, for example, as 20529961 + 5631129 = 4531^2 + 2373^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10911 + ... + 13090.

Almost surely, 2^26161090 is an apocalyptic number.

26161090 is a deficient number, since it is larger than the sum of its proper divisors (21362870).

26161090 is a wasteful number, since it uses less digits than its factorization.

26161090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24117.

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 26161090 is about 5114.7912958399. The cubic root of 26161090 is about 296.8601789831.

The spelling of 26161090 in words is "twenty-six million, one hundred sixty-one thousand, ninety".