28465554 has 16 divisors (see below), whose sum is σ = 61310592. Its totient is φ = 8758608.

The previous prime is 28465529. The next prime is 28465561. The reversal of 28465554 is 45556482.

It is a Harshad number since it is a multiple of its sum of digits (39).

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, 182394 + ... + 182549.

It is an arithmetic number, because the mean of its divisors is an integer number (3831912).

Almost surely, 2^28465554 is an apocalyptic number.

28465554 is an abundant number, since it is smaller than the sum of its proper divisors (32845038).

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

28465554 is a wasteful number, since it uses less digits than its factorization.

28465554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364961.

The product of its digits is 192000, while the sum is 39.

The square root of 28465554 is about 5335.3119871288. The cubic root of 28465554 is about 305.3326264526.

The spelling of 28465554 in words is "twenty-eight million, four hundred sixty-five thousand, five hundred fifty-four".