225340398980 has 48 divisors (see below), whose sum is σ = 477455522544. Its totient is φ = 89331816960.

The previous prime is 225340398953. The next prime is 225340398989. The reversal of 225340398980 is 89893043522.

It can be written as a sum of positive squares in 8 ways, for example, as 1929142084 + 223411256896 = 43922^2 + 472664^2 .

It is not an unprimeable number, because it can be changed into a prime (225340398989) 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, 954434 + ... + 1166886.

It is an arithmetic number, because the mean of its divisors is an integer number (9946990053).

Almost surely, 2^225340398980 is an apocalyptic number.

225340398980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

225340398980 is an abundant number, since it is smaller than the sum of its proper divisors (252115123564).

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

225340398980 is a wasteful number, since it uses less digits than its factorization.

225340398980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212936 (or 212934 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 53.

The spelling of 225340398980 in words is "two hundred twenty-five billion, three hundred forty million, three hundred ninety-eight thousand, nine hundred eighty".