26624240 has 20 divisors (see below), whose sum is σ = 61901544. Its totient is φ = 10649664.

The previous prime is 26624239. The next prime is 26624249. The reversal of 26624240 is 4242662.

It is a tau number, because it is divible by the number of its divisors (20).

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26624249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 166322 + ... + 166481.

Almost surely, 2^26624240 is an apocalyptic number.

26624240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26624240 is an abundant number, since it is smaller than the sum of its proper divisors (35277304).

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

26624240 is a wasteful number, since it uses less digits than its factorization.

26624240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332816 (or 332810 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 26624240 is about 5159.8682153714. The cubic root of 26624240 is about 298.6017897809.

The spelling of 26624240 in words is "twenty-six million, six hundred twenty-four thousand, two hundred forty".