228160690 has 64 divisors (see below), whose sum is σ = 449971200. Its totient is φ = 83026944.

The previous prime is 228160687. The next prime is 228160693. The reversal of 228160690 is 96061822.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (228160687) and next prime (228160693).

It is a super-2 number, since 2×228160690² = 104114600922552200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (228160693) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 526714 + ... + 527146.

It is an arithmetic number, because the mean of its divisors is an integer number (7030800).

Almost surely, 2^228160690 is an apocalyptic number.

228160690 is a deficient number, since it is larger than the sum of its proper divisors (221810510).

228160690 is a wasteful number, since it uses less digits than its factorization.

228160690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 571.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 228160690 is about 15104.9889109526. The cubic root of 228160690 is about 611.0549602648.

The spelling of 228160690 in words is "two hundred twenty-eight million, one hundred sixty thousand, six hundred ninety".