2113400904 has 32 divisors (see below), whose sum is σ = 5325112320. Its totient is φ = 698918976.

The previous prime is 2113400903. The next prime is 2113400909. The reversal of 2113400904 is 4090043112.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (2113400903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 343639 + ... + 349734.

It is an arithmetic number, because the mean of its divisors is an integer number (166409760).

Almost surely, 2^2113400904 is an apocalyptic number.

2113400904 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2113400904 is an abundant number, since it is smaller than the sum of its proper divisors (3211711416).

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

2113400904 is a wasteful number, since it uses less digits than its factorization.

2113400904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 693509 (or 693505 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 2113400904 is about 45971.7402759565. The cubic root of 2113400904 is about 1283.2973465518.

The spelling of 2113400904 in words is "two billion, one hundred thirteen million, four hundred thousand, nine hundred four".