227900920 has 32 divisors (see below), whose sum is σ = 552222720. Its totient is φ = 84147840.

The previous prime is 227900917. The next prime is 227900923. The reversal of 227900920 is 29009722.

It is an interprime number because it is at equal distance from previous prime (227900917) and next prime (227900923).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (227900923) 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, 218616 + ... + 219655.

It is an arithmetic number, because the mean of its divisors is an integer number (17256960).

Almost surely, 2^227900920 is an apocalyptic number.

227900920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

227900920 is an abundant number, since it is smaller than the sum of its proper divisors (324321800).

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

227900920 is a wasteful number, since it uses less digits than its factorization.

227900920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 438295 (or 438291 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 227900920 is about 15096.3876473811. The cubic root of 227900920 is about 610.8229687581.

The spelling of 227900920 in words is "two hundred twenty-seven million, nine hundred thousand, nine hundred twenty".