28426604 has 6 divisors (see below), whose sum is σ = 49746564. Its totient is φ = 14213300.

The previous prime is 28426591. The next prime is 28426609. The reversal of 28426604 is 40662482.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (28426609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3553322 + ... + 3553329.

It is an arithmetic number, because the mean of its divisors is an integer number (8291094).

Almost surely, 2^28426604 is an apocalyptic number.

It is an amenable number.

28426604 is a deficient number, since it is larger than the sum of its proper divisors (21319960).

28426604 is a wasteful number, since it uses less digits than its factorization.

28426604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7106655 (or 7106653 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 32.

The square root of 28426604 is about 5331.6605293286. The cubic root of 28426604 is about 305.1932985914.

The spelling of 28426604 in words is "twenty-eight million, four hundred twenty-six thousand, six hundred four".