26405242 has 16 divisors (see below), whose sum is σ = 42665472. Its totient is φ = 12220560.

The previous prime is 26405227. The next prime is 26405261. The reversal of 26405242 is 24250462.

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, 7833 + ... + 10684.

It is an arithmetic number, because the mean of its divisors is an integer number (2666592).

Almost surely, 2^26405242 is an apocalyptic number.

26405242 is a deficient number, since it is larger than the sum of its proper divisors (16260230).

26405242 is a wasteful number, since it uses less digits than its factorization.

26405242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18573.

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 26405242 is about 5138.6031175797. The cubic root of 26405242 is about 297.7808171620.

The spelling of 26405242 in words is "twenty-six million, four hundred five thousand, two hundred forty-two".