2445372720 has 160 divisors (see below), whose sum is σ = 9626288640. Its totient is φ = 558938880.

The previous prime is 2445372691. The next prime is 2445372779. The reversal of 2445372720 is 272735442.

It is a happy number.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 65746 + ... + 95985.

It is an arithmetic number, because the mean of its divisors is an integer number (60164304).

Almost surely, 2^2445372720 is an apocalyptic number.

2445372720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2445372720 is an abundant number, since it is smaller than the sum of its proper divisors (7180915920).

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

2445372720 is a wasteful number, since it uses less digits than its factorization.

2445372720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161760 (or 161748 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 36.

The square root of 2445372720 is about 49450.7100050141. The cubic root of 2445372720 is about 1347.2505027633.

The spelling of 2445372720 in words is "two billion, four hundred forty-five million, three hundred seventy-two thousand, seven hundred twenty".