27428502 has 8 divisors (see below), whose sum is σ = 54857016. Its totient is φ = 9142832.

The previous prime is 27428501. The next prime is 27428537. The reversal of 27428502 is 20582472.

It is a sphenic number, since it is the product of 3 distinct primes.

27428502 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 27428502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27428501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2285703 + ... + 2285714.

It is an arithmetic number, because the mean of its divisors is an integer number (6857127).

Almost surely, 2^27428502 is an apocalyptic number.

27428502 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

27428502 is a wasteful number, since it uses less digits than its factorization.

27428502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4571422.

The product of its (nonzero) digits is 8960, while the sum is 30.

The square root of 27428502 is about 5237.2227372912. Note that the first 3 decimals coincide. The cubic root of 27428502 is about 301.5787219942.

The spelling of 27428502 in words is "twenty-seven million, four hundred twenty-eight thousand, five hundred two".