372472221640 has 16 divisors (see below), whose sum is σ = 838062498780. Its totient is φ = 148988888640.

The previous prime is 372472221629. The next prime is 372472221691. The reversal of 372472221640 is 46122274273.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 372078040324 + 394181316 = 609982^2 + 19854^2 .

It is a Harshad number since it is a multiple of its sum of digits (40), and also a Moran number because the ratio is a prime number: 9311805541 = 372472221640 / (3 + 7 + 2 + 4 + 7 + 2 + 2 + 2 + 1 + 6 + 4 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 372472221593 and 372472221602.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4655902731 + ... + 4655902810.

Almost surely, 2^372472221640 is an apocalyptic number.

It is an amenable number.

372472221640 is an abundant number, since it is smaller than the sum of its proper divisors (465590277140).

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

372472221640 is a wasteful number, since it uses less digits than its factorization.

372472221640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9311805552 (or 9311805548 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 40.

The spelling of 372472221640 in words is "three hundred seventy-two billion, four hundred seventy-two million, two hundred twenty-one thousand, six hundred forty".