28425976 has 64 divisors (see below), whose sum is σ = 60134400. Its totient is φ = 12532608.

The previous prime is 28425973. The next prime is 28425983. The reversal of 28425976 is 67952482.

It is a super-2 number, since 2×28425976² = 1616072223105152, which contains 22 as substring.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28425973) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 164226 + ... + 164398.

It is an arithmetic number, because the mean of its divisors is an integer number (939600).

Almost surely, 2^28425976 is an apocalyptic number.

It is an amenable number.

28425976 is an abundant number, since it is smaller than the sum of its proper divisors (31708424).

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

28425976 is a wasteful number, since it uses less digits than its factorization.

28425976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268 (or 264 counting only the distinct ones).

The product of its digits is 241920, while the sum is 43.

The square root of 28425976 is about 5331.6016355313. The cubic root of 28425976 is about 305.1910511333.

The spelling of 28425976 in words is "twenty-eight million, four hundred twenty-five thousand, nine hundred seventy-six".