229700916 has 18 divisors (see below), whose sum is σ = 580632962. Its totient is φ = 76566960.

The previous prime is 229700897. The next prime is 229700941. The reversal of 229700916 is 619007922.

It can be written as a sum of positive squares in only one way, i.e., 165636900 + 64064016 = 12870^2 + 8004^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×229700916² = 105525021622478112, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 6380581 = 229700916 / (2 + 2 + 9 + 7 + 0 + 0 + 9 + 1 + 6).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3190255 + ... + 3190326.

Almost surely, 2^229700916 is an apocalyptic number.

It is an amenable number.

229700916 is an abundant number, since it is smaller than the sum of its proper divisors (350932046).

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

229700916 is a wasteful number, since it uses less digits than its factorization.

229700916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6380591 (or 6380586 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The square root of 229700916 is about 15155.8871729767. The cubic root of 229700916 is about 612.4268776237.

The spelling of 229700916 in words is "two hundred twenty-nine million, seven hundred thousand, nine hundred sixteen".