2400891372 has 72 divisors (see below), whose sum is σ = 6799617552. Its totient is φ = 707875200.

The previous prime is 2400891343. The next prime is 2400891373. The reversal of 2400891372 is 2731980042.

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

It is not an unprimeable number, because it can be changed into a prime (2400891373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 67279 + ... + 96582.

Almost surely, 2^2400891372 is an apocalyptic number.

2400891372 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2400891372 is an abundant number, since it is smaller than the sum of its proper divisors (4398726180).

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

2400891372 is a wasteful number, since it uses less digits than its factorization.

2400891372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163919 (or 163914 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 2400891372 is about 48998.8915384828. The cubic root of 2400891372 is about 1339.0316334779.

It can be divided in two parts, 24008913 and 72, that added together give a triangular number (24008985 = T₆₉₂₉).

The spelling of 2400891372 in words is "two billion, four hundred million, eight hundred ninety-one thousand, three hundred seventy-two".