2378662720 has 56 divisors (see below), whose sum is σ = 6473366784. Its totient is φ = 815540736.

The previous prime is 2378662717. The next prime is 2378662799. The reversal of 2378662720 is 272668732.

It is a tau number, because it is divible by the number of its divisors (56).

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 528712 + ... + 533191.

Almost surely, 2^2378662720 is an apocalyptic number.

2378662720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2378662720 is an abundant number, since it is smaller than the sum of its proper divisors (4094704064).

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

2378662720 is a wasteful number, since it uses less digits than its factorization.

2378662720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1061927 (or 1061917 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 43.

The square root of 2378662720 is about 48771.5359610501. The cubic root of 2378662720 is about 1334.8863393159.

The spelling of 2378662720 in words is "two billion, three hundred seventy-eight million, six hundred sixty-two thousand, seven hundred twenty".