228792915 has 48 divisors (see below), whose sum is σ = 437542560. Its totient is φ = 109877760.

The previous prime is 228792911. The next prime is 228792929. The reversal of 228792915 is 519297822.

It is a happy number.

228792915 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 228792915 - 2² = 228792911 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (228792911) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 19216 + ... + 28754.

It is an arithmetic number, because the mean of its divisors is an integer number (9115470).

Almost surely, 2^228792915 is an apocalyptic number.

228792915 is a deficient number, since it is larger than the sum of its proper divisors (208749645).

228792915 is a wasteful number, since it uses less digits than its factorization.

228792915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9604 (or 9601 counting only the distinct ones).

The product of its digits is 181440, while the sum is 45.

The square root of 228792915 is about 15125.9021218571. The cubic root of 228792915 is about 611.6188434654.

The spelling of 228792915 in words is "two hundred twenty-eight million, seven hundred ninety-two thousand, nine hundred fifteen".