28531046 has 8 divisors (see below), whose sum is σ = 45049080. Its totient is φ = 13514688.

The previous prime is 28530979. The next prime is 28531051. The reversal of 28531046 is 64013582.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a plaindrome in base 15.

It is a congruent number.

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, 375371 + ... + 375446.

It is an arithmetic number, because the mean of its divisors is an integer number (5631135).

Almost surely, 2^28531046 is an apocalyptic number.

28531046 is a deficient number, since it is larger than the sum of its proper divisors (16518034).

28531046 is a wasteful number, since it uses less digits than its factorization.

28531046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 750838.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 28531046 is about 5341.4460588871. The cubic root of 28531046 is about 305.5666113367.

The spelling of 28531046 in words is "twenty-eight million, five hundred thirty-one thousand, forty-six".