228701913 has 16 divisors (see below), whose sum is σ = 333994752. Its totient is φ = 138050000.

The previous prime is 228701897. The next prime is 228701923. The reversal of 228701913 is 319107822.

It is not a de Polignac number, because 228701913 - 2⁴ = 228701897 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (228701923) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5523 + ... + 22088.

It is an arithmetic number, because the mean of its divisors is an integer number (20874672).

Almost surely, 2^228701913 is an apocalyptic number.

It is an amenable number.

228701913 is a deficient number, since it is larger than the sum of its proper divisors (105292839).

228701913 is a wasteful number, since it uses less digits than its factorization.

228701913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27876.

The product of its (nonzero) digits is 6048, while the sum is 33.

The square root of 228701913 is about 15122.8936715167. The cubic root of 228701913 is about 611.5377425872.

The spelling of 228701913 in words is "two hundred twenty-eight million, seven hundred one thousand, nine hundred thirteen".