228999615 has 32 divisors (see below), whose sum is σ = 411747840. Its totient is φ = 107834496.

The previous prime is 228999587. The next prime is 228999653. The reversal of 228999615 is 516999822.

It is not a de Polignac number, because 228999615 - 2¹³ = 228991423 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21045 + ... + 30014.

It is an arithmetic number, because the mean of its divisors is an integer number (12867120).

Almost surely, 2^228999615 is an apocalyptic number.

228999615 is a deficient number, since it is larger than the sum of its proper divisors (182748225).

228999615 is a wasteful number, since it uses less digits than its factorization.

228999615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51103.

The product of its digits is 699840, while the sum is 51.

The square root of 228999615 is about 15132.7332296582. The cubic root of 228999615 is about 611.8029744043.

The spelling of 228999615 in words is "two hundred twenty-eight million, nine hundred ninety-nine thousand, six hundred fifteen".