228918330631 has 8 divisors (see below), whose sum is σ = 247108243680. Its totient is φ = 211414829472.

The previous prime is 228918330551. The next prime is 228918330643. The reversal of 228918330631 is 136033819822.

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

It is a cyclic number.

It is not a de Polignac number, because 228918330631 - 2¹⁵ = 228918297863 is a prime.

It is a super-2 number, since 2×228918330631² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228918310631) 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, 171602280 + ... + 171603613.

It is an arithmetic number, because the mean of its divisors is an integer number (30888530460).

Almost surely, 2^228918330631 is an apocalyptic number.

228918330631 is a deficient number, since it is larger than the sum of its proper divisors (18189913049).

228918330631 is a wasteful number, since it uses less digits than its factorization.

228918330631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343205945.

The product of its (nonzero) digits is 373248, while the sum is 46.

The spelling of 228918330631 in words is "two hundred twenty-eight billion, nine hundred eighteen million, three hundred thirty thousand, six hundred thirty-one".