227131398 has 32 divisors (see below), whose sum is σ = 543564000. Its totient is φ = 69886368.

The previous prime is 227131379. The next prime is 227131403. The reversal of 227131398 is 893131722.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 161073 + ... + 162476.

It is an arithmetic number, because the mean of its divisors is an integer number (16986375).

Almost surely, 2^227131398 is an apocalyptic number.

227131398 is an abundant number, since it is smaller than the sum of its proper divisors (316432602).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

227131398 is a wasteful number, since it uses less digits than its factorization.

227131398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323573 (or 323567 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 227131398 is about 15070.8791382587. The cubic root of 227131398 is about 610.1346992692.

It can be divided in two parts, 227131 and 398, that added together give a square (227529 = 477²).

The spelling of 227131398 in words is "two hundred twenty-seven million, one hundred thirty-one thousand, three hundred ninety-eight".