26620464 has 80 divisors (see below), whose sum is σ = 76127072. Its totient is φ = 7962624.

The previous prime is 26620457. The next prime is 26620481. The reversal of 26620464 is 46402662.

It is a congruent number.

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, 22512 + ... + 23664.

Almost surely, 2^26620464 is an apocalyptic number.

26620464 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26620464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38063536).

26620464 is an abundant number, since it is smaller than the sum of its proper divisors (49506608).

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

26620464 is a wasteful number, since it uses less digits than its factorization.

26620464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1214 (or 1208 counting only the distinct ones).

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

The square root of 26620464 is about 5159.5023015791. The cubic root of 26620464 is about 298.5876726498.

The spelling of 26620464 in words is "twenty-six million, six hundred twenty thousand, four hundred sixty-four".