26428564 has 24 divisors (see below), whose sum is σ = 48746880. Its totient is φ = 12512544.

The previous prime is 26428513. The next prime is 26428583. The reversal of 26428564 is 46582462.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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, 8082 + ... + 10870.

It is an arithmetic number, because the mean of its divisors is an integer number (2031120).

Almost surely, 2^26428564 is an apocalyptic number.

It is an amenable number.

26428564 is a deficient number, since it is larger than the sum of its proper divisors (22318316).

26428564 is a wasteful number, since it uses less digits than its factorization.

26428564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2919 (or 2917 counting only the distinct ones).

The product of its digits is 92160, while the sum is 37.

The square root of 26428564 is about 5140.8719104837. The cubic root of 26428564 is about 297.8684613828.

The spelling of 26428564 in words is "twenty-six million, four hundred twenty-eight thousand, five hundred sixty-four".