228140577 has 16 divisors (see below), whose sum is σ = 386270080. Its totient is φ = 130365936.

The previous prime is 228140573. The next prime is 228140579. The reversal of 228140577 is 775041822.

228140577 is a `hidden beast` number, since 2 + 2 + 81 + 4 + 0 + 577 = 666.

It is not a de Polignac number, because 228140577 - 2² = 228140573 is a prime.

It is not an unprimeable number, because it can be changed into a prime (228140573) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 603358 + ... + 603735.

It is an arithmetic number, because the mean of its divisors is an integer number (24141880).

Almost surely, 2^228140577 is an apocalyptic number.

228140577 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

228140577 is a deficient number, since it is larger than the sum of its proper divisors (158129503).

228140577 is a wasteful number, since it uses less digits than its factorization.

228140577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1207109 (or 1207103 counting only the distinct ones).

The product of its (nonzero) digits is 31360, while the sum is 36.

The square root of 228140577 is about 15104.3231228678. The cubic root of 228140577 is about 611.0370043385.

The spelling of 228140577 in words is "two hundred twenty-eight million, one hundred forty thousand, five hundred seventy-seven".