31404226228 has 24 divisors (see below), whose sum is σ = 58005036320. Its totient is φ = 14835791520.

The previous prime is 31404226213. The next prime is 31404226279. The reversal of 31404226228 is 82262240413.

It is a junction number, because it is equal to n+sod(n) for n = 31404226193 and 31404226202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 525558 + ... + 582253.

Almost surely, 2^31404226228 is an apocalyptic number.

31404226228 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

31404226228 is a deficient number, since it is larger than the sum of its proper divisors (26600810092).

31404226228 is a wasteful number, since it uses less digits than its factorization.

31404226228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1108207 (or 1108205 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 34.

The spelling of 31404226228 in words is "thirty-one billion, four hundred four million, two hundred twenty-six thousand, two hundred twenty-eight".