2421364378 has 16 divisors (see below), whose sum is σ = 3738332160. Its totient is φ = 1175756400.

The previous prime is 2421364373. The next prime is 2421364391. The reversal of 2421364378 is 8734631242.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2421364378.

It is not an unprimeable number, because it can be changed into a prime (2421364373) by changing a digit.

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, 115978 + ... + 135253.

It is an arithmetic number, because the mean of its divisors is an integer number (233645760).

Almost surely, 2^2421364378 is an apocalyptic number.

2421364378 is a deficient number, since it is larger than the sum of its proper divisors (1316967782).

2421364378 is a wasteful number, since it uses less digits than its factorization.

2421364378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251373.

The product of its digits is 193536, while the sum is 40.

The square root of 2421364378 is about 49207.3610143848. The cubic root of 2421364378 is about 1342.8269527229.

The spelling of 2421364378 in words is "two billion, four hundred twenty-one million, three hundred sixty-four thousand, three hundred seventy-eight".