228989897040 has 160 divisors (see below), whose sum is σ = 758799933696. Its totient is φ = 56984350720.

The previous prime is 228989897033. The next prime is 228989897053. The reversal of 228989897040 is 40798989822.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 279579 + ... + 732218.

Almost surely, 2^228989897040 is an apocalyptic number.

228989897040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

228989897040 is an abundant number, since it is smaller than the sum of its proper divisors (529810036656).

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

228989897040 is a wasteful number, since it uses less digits than its factorization.

228989897040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1011877 (or 1011871 counting only the distinct ones).

The product of its (nonzero) digits is 41803776, while the sum is 66.

The spelling of 228989897040 in words is "two hundred twenty-eight billion, nine hundred eighty-nine million, eight hundred ninety-seven thousand, forty".