228770031 has 8 divisors (see below), whose sum is σ = 348601984. Its totient is φ = 130725720.

The previous prime is 228770021. The next prime is 228770057. The reversal of 228770031 is 130077822.

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

It is not a de Polignac number, because 228770031 - 2⁵ = 228769999 is a prime.

It is a super-2 number, since 2×228770031² = 104671454167481922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228770021) 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, 5446885 + ... + 5446926.

It is an arithmetic number, because the mean of its divisors is an integer number (43575248).

Almost surely, 2^228770031 is an apocalyptic number.

228770031 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

228770031 is a deficient number, since it is larger than the sum of its proper divisors (119831953).

228770031 is a wasteful number, since it uses less digits than its factorization.

228770031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10893821.

The product of its (nonzero) digits is 4704, while the sum is 30.

The square root of 228770031 is about 15125.1456521913. The cubic root of 228770031 is about 611.5984512951.

The spelling of 228770031 in words is "two hundred twenty-eight million, seven hundred seventy thousand, thirty-one".