28951456 has 12 divisors (see below), whose sum is σ = 56998242. Its totient is φ = 14475712.

The previous prime is 28951423. The next prime is 28951463. The reversal of 28951456 is 65415982.

It can be written as a sum of positive squares in only one way, i.e., 28944400 + 7056 = 5380^2 + 84^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 452335 + ... + 452398.

Almost surely, 2^28951456 is an apocalyptic number.

It is an amenable number.

28951456 is a deficient number, since it is larger than the sum of its proper divisors (28046786).

28951456 is an equidigital number, since it uses as much as digits as its factorization.

28951456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 904743 (or 904735 counting only the distinct ones).

The product of its digits is 86400, while the sum is 40.

The square root of 28951456 is about 5380.6557221216. The cubic root of 28951456 is about 307.0601586105.

The spelling of 28951456 in words is "twenty-eight million, nine hundred fifty-one thousand, four hundred fifty-six".