28715042 has 16 divisors (see below), whose sum is σ = 45480960. Its totient is φ = 13559472.

The previous prime is 28715039. The next prime is 28715051. The reversal of 28715042 is 24051782.

It is a junction number, because it is equal to n+sod(n) for n = 28714996 and 28715014.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13568 + ... + 15540.

It is an arithmetic number, because the mean of its divisors is an integer number (2842560).

Almost surely, 2^28715042 is an apocalyptic number.

28715042 is a deficient number, since it is larger than the sum of its proper divisors (16765918).

28715042 is a wasteful number, since it uses less digits than its factorization.

28715042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2377.

The product of its (nonzero) digits is 4480, while the sum is 29.

The square root of 28715042 is about 5358.6418055324. The cubic root of 28715042 is about 306.2220681453. Note that the first 3 decimals are identical.

The spelling of 28715042 in words is "twenty-eight million, seven hundred fifteen thousand, forty-two".