28631416 has 32 divisors (see below), whose sum is σ = 58867200. Its totient is φ = 12947040.

The previous prime is 28631401. The next prime is 28631429. The reversal of 28631416 is 61413682.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18895 + ... + 20353.

It is an arithmetic number, because the mean of its divisors is an integer number (1839600).

Almost surely, 2^28631416 is an apocalyptic number.

It is an amenable number.

28631416 is an abundant number, since it is smaller than the sum of its proper divisors (30235784).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28631416 is a wasteful number, since it uses less digits than its factorization.

28631416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1699 (or 1695 counting only the distinct ones).

The product of its digits is 6912, while the sum is 31.

The square root of 28631416 is about 5350.8332061465. The cubic root of 28631416 is about 305.9245118304.

The spelling of 28631416 in words is "twenty-eight million, six hundred thirty-one thousand, four hundred sixteen".