26724642 has 16 divisors (see below), whose sum is σ = 61084992. Its totient is φ = 7635600.

The previous prime is 26724617. The next prime is 26724647. The reversal of 26724642 is 24642762.

It is not an unprimeable number, because it can be changed into a prime (26724647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 318109 + ... + 318192.

It is an arithmetic number, because the mean of its divisors is an integer number (3817812).

Almost surely, 2^26724642 is an apocalyptic number.

26724642 is an abundant number, since it is smaller than the sum of its proper divisors (34360350).

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

26724642 is a wasteful number, since it uses less digits than its factorization.

26724642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 636313.

The product of its digits is 32256, while the sum is 33.

The square root of 26724642 is about 5169.5881847590. The cubic root of 26724642 is about 298.9766688357.

The spelling of 26724642 in words is "twenty-six million, seven hundred twenty-four thousand, six hundred forty-two".