2378778732 has 48 divisors (see below), whose sum is σ = 6727862400. Its totient is φ = 720841680.

The previous prime is 2378778709. The next prime is 2378778751.

2378778732 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 999982 + ... + 1002357.

It is an arithmetic number, because the mean of its divisors is an integer number (140163800).

Almost surely, 2^2378778732 is an apocalyptic number.

2378778732 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2378778732 is an abundant number, since it is smaller than the sum of its proper divisors (4349083668).

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

2378778732 is a wasteful number, since it uses less digits than its factorization.

2378778732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2002363 (or 2002355 counting only the distinct ones).

The product of its digits is 5531904, while the sum is 54.

The square root of 2378778732 is about 48772.7252878081. The cubic root of 2378778732 is about 1334.9080406294.

The spelling of 2378778732 in words is "two billion, three hundred seventy-eight million, seven hundred seventy-eight thousand, seven hundred thirty-two".