28492012 has 6 divisors (see below), whose sum is σ = 49861028. Its totient is φ = 14246004.

The previous prime is 28491997. The next prime is 28492019. The reversal of 28492012 is 21029482.

It is not an unprimeable number, because it can be changed into a prime (28492019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3561498 + ... + 3561505.

Almost surely, 2^28492012 is an apocalyptic number.

It is an amenable number.

28492012 is a deficient number, since it is larger than the sum of its proper divisors (21369016).

28492012 is a wasteful number, since it uses less digits than its factorization.

28492012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7123007 (or 7123005 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 28492012 is about 5337.7909288394. The cubic root of 28492012 is about 305.4271967651.

The spelling of 28492012 in words is "twenty-eight million, four hundred ninety-two thousand, twelve".