2151407904 has 48 divisors (see below), whose sum is σ = 5697451872. Its totient is φ = 710786048.

The previous prime is 2151407873. The next prime is 2151407927. The reversal of 2151407904 is 4097041512.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88314 + ... + 110009.

It is an arithmetic number, because the mean of its divisors is an integer number (118696914).

Almost surely, 2^2151407904 is an apocalyptic number.

2151407904 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2151407904 is an abundant number, since it is smaller than the sum of its proper divisors (3546043968).

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

2151407904 is a wasteful number, since it uses less digits than its factorization.

2151407904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198449 (or 198441 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 33.

The square root of 2151407904 is about 46383.2718121523. The cubic root of 2151407904 is about 1290.9445446948.

The spelling of 2151407904 in words is "two billion, one hundred fifty-one million, four hundred seven thousand, nine hundred four".