2378401820 has 24 divisors (see below), whose sum is σ = 4999267728. Its totient is φ = 950480000.

The previous prime is 2378401811. The next prime is 2378401843. The reversal of 2378401820 is 281048732.

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, 32681 + ... + 76320.

It is an arithmetic number, because the mean of its divisors is an integer number (208302822).

Almost surely, 2^2378401820 is an apocalyptic number.

2378401820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2378401820 is an abundant number, since it is smaller than the sum of its proper divisors (2620865908).

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

2378401820 is a wasteful number, since it uses less digits than its factorization.

2378401820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110101 (or 110099 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 35.

The square root of 2378401820 is about 48768.8611718584. The cubic root of 2378401820 is about 1334.8375325393.

The spelling of 2378401820 in words is "two billion, three hundred seventy-eight million, four hundred one thousand, eight hundred twenty".