28049512 has 16 divisors (see below), whose sum is σ = 54879840. Its totient is φ = 13414896.

The previous prime is 28049509. The next prime is 28049537. The reversal of 28049512 is 21594082.

It is a super-4 number, since 4×28049512⁴ (a number of 31 digits) contains 4444 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76038 + ... + 76405.

It is an arithmetic number, because the mean of its divisors is an integer number (3429990).

Almost surely, 2^28049512 is an apocalyptic number.

It is an amenable number.

28049512 is a deficient number, since it is larger than the sum of its proper divisors (26830328).

28049512 is a wasteful number, since it uses less digits than its factorization.

28049512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152472 (or 152468 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 28049512 is about 5296.1789999961. The cubic root of 28049512 is about 303.8377770220.

It can be divided in two parts, 28049 and 512, that added together give a 4-th power (28561 = 13⁴).

The spelling of 28049512 in words is "twenty-eight million, forty-nine thousand, five hundred twelve".