228602931 has 8 divisors (see below), whose sum is σ = 308979600. Its totient is φ = 150314112.

The previous prime is 228602923. The next prime is 228602947. The reversal of 228602931 is 139206822.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 228602931 - 2³ = 228602923 is a prime.

It is a super-2 number, since 2×228602931² = 104518600123581522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 228602892 and 228602901.

It is not an unprimeable number, because it can be changed into a prime (228602431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 521706 + ... + 522143.

It is an arithmetic number, because the mean of its divisors is an integer number (38622450).

Almost surely, 2^228602931 is an apocalyptic number.

228602931 is a deficient number, since it is larger than the sum of its proper divisors (80376669).

228602931 is a wasteful number, since it uses less digits than its factorization.

228602931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1043925.

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 228602931 is about 15119.6207293702. The cubic root of 228602931 is about 611.4495055122.

The spelling of 228602931 in words is "two hundred twenty-eight million, six hundred two thousand, nine hundred thirty-one".