228705040400 has 60 divisors (see below), whose sum is σ = 549607001472. Its totient is φ = 91458184320.

The previous prime is 228705040351. The next prime is 228705040427. The reversal of 228705040400 is 4040507822.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1504697 + ... + 1649703.

Almost surely, 2^228705040400 is an apocalyptic number.

228705040400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

228705040400 is an abundant number, since it is smaller than the sum of its proper divisors (320901961072).

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

228705040400 is a wasteful number, since it uses less digits than its factorization.

228705040400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148968 (or 148957 counting only the distinct ones).

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

The spelling of 228705040400 in words is "two hundred twenty-eight billion, seven hundred five million, forty thousand, four hundred".