28572074 has 8 divisors (see below), whose sum is σ = 42886560. Its totient is φ = 14276556.

The previous prime is 28572073. The next prime is 28572077. The reversal of 28572074 is 47027582.

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

It is a super-2 number, since 2×28572074² = 1632726825322952, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28572073) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44 + ... + 7559.

It is an arithmetic number, because the mean of its divisors is an integer number (5360820).

Almost surely, 2^28572074 is an apocalyptic number.

28572074 is a deficient number, since it is larger than the sum of its proper divisors (14314486).

28572074 is a wasteful number, since it uses less digits than its factorization.

28572074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9484.

The product of its (nonzero) digits is 31360, while the sum is 35.

The square root of 28572074 is about 5345.2852122221. The cubic root of 28572074 is about 305.7130107172.

The spelling of 28572074 in words is "twenty-eight million, five hundred seventy-two thousand, seventy-four".