2143901368 has 32 divisors (see below), whose sum is σ = 4652236800. Its totient is φ = 907182432.

The previous prime is 2143901363. The next prime is 2143901393. The reversal of 2143901368 is 8631093412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2143901363) 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, 237880 + ... + 246727.

It is an arithmetic number, because the mean of its divisors is an integer number (145382400).

Almost surely, 2^2143901368 is an apocalyptic number.

2143901368 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2143901368 is an abundant number, since it is smaller than the sum of its proper divisors (2508335432).

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

2143901368 is a wasteful number, since it uses less digits than its factorization.

2143901368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 484699 (or 484695 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 2143901368 is about 46302.2825355295. The cubic root of 2143901368 is about 1289.4413718088.

The spelling of 2143901368 in words is "two billion, one hundred forty-three million, nine hundred one thousand, three hundred sixty-eight".