26142690 has 32 divisors (see below), whose sum is σ = 71706240. Its totient is φ = 5975424.

The previous prime is 26142679. The next prime is 26142713. The reversal of 26142690 is 9624162.

It is a super-2 number, since 2×26142690² = 1366880480872200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62035 + ... + 62454.

It is an arithmetic number, because the mean of its divisors is an integer number (2240820).

Almost surely, 2^26142690 is an apocalyptic number.

26142690 is an abundant number, since it is smaller than the sum of its proper divisors (45563550).

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

26142690 is a wasteful number, since it uses less digits than its factorization.

26142690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124506.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 26142690 is about 5112.9922745883. The cubic root of 26142690 is about 296.7905653140.

The spelling of 26142690 in words is "twenty-six million, one hundred forty-two thousand, six hundred ninety".