28345036 has 48 divisors (see below), whose sum is σ = 55157760. Its totient is φ = 12692160.

The previous prime is 28345021. The next prime is 28345061. The reversal of 28345036 is 63054382.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a junction number, because it is equal to n+sod(n) for n = 28344989 and 28345007.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 124755 + ... + 124981.

It is an arithmetic number, because the mean of its divisors is an integer number (1149120).

Almost surely, 2^28345036 is an apocalyptic number.

It is an amenable number.

28345036 is a deficient number, since it is larger than the sum of its proper divisors (26812724).

28345036 is a wasteful number, since it uses less digits than its factorization.

28345036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334 (or 332 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 28345036 is about 5324.0056348580. The cubic root of 28345036 is about 304.9011092102.

The spelling of 28345036 in words is "twenty-eight million, three hundred forty-five thousand, thirty-six".