26664042 has 16 divisors (see below), whose sum is σ = 54568800. Its totient is φ = 8681232.

The previous prime is 26664023. The next prime is 26664083. The reversal of 26664042 is 24046662.

It is a super-2 number, since 2×26664042² = 1421942271555528, which contains 22 as substring.

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, 51417 + ... + 51932.

It is an arithmetic number, because the mean of its divisors is an integer number (3410550).

Almost surely, 2^26664042 is an apocalyptic number.

26664042 is an abundant number, since it is smaller than the sum of its proper divisors (27904758).

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

26664042 is a wasteful number, since it uses less digits than its factorization.

26664042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103397.

The product of its (nonzero) digits is 13824, while the sum is 30.

The square root of 26664042 is about 5163.7236564324. The cubic root of 26664042 is about 298.7505142875.

The spelling of 26664042 in words is "twenty-six million, six hundred sixty-four thousand, forty-two".