228574040 has 64 divisors (see below), whose sum is σ = 523242720. Its totient is φ = 89856000.

The previous prime is 228574037. The next prime is 228574091. The reversal of 228574040 is 40475822.

It is a junction number, because it is equal to n+sod(n) for n = 228573988 and 228574006.

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, 948320 + ... + 948560.

Almost surely, 2^228574040 is an apocalyptic number.

228574040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

228574040 is an abundant number, since it is smaller than the sum of its proper divisors (294668680).

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

228574040 is a wasteful number, since it uses less digits than its factorization.

228574040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 564 (or 560 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 32.

The square root of 228574040 is about 15118.6652850045. The cubic root of 228574040 is about 611.4237459535.

The spelling of 228574040 in words is "two hundred twenty-eight million, five hundred seventy-four thousand, forty".