2154093984 has 72 divisors (see below), whose sum is σ = 7000812000. Its totient is φ = 615454848.

The previous prime is 2154093971. The next prime is 2154094013. The reversal of 2154093984 is 4893904512.

2154093984 is a `hidden beast` number, since 21 + 540 + 9 + 3 + 9 + 84 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 532234 + ... + 536265.

It is an arithmetic number, because the mean of its divisors is an integer number (97233500).

Almost surely, 2^2154093984 is an apocalyptic number.

2154093984 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2154093984 is an abundant number, since it is smaller than the sum of its proper divisors (4846718016).

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

2154093984 is a wasteful number, since it uses less digits than its factorization.

2154093984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1068522 (or 1068511 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The square root of 2154093984 is about 46412.2180465446. The cubic root of 2154093984 is about 1291.4815787923.

The spelling of 2154093984 in words is "two billion, one hundred fifty-four million, ninety-three thousand, nine hundred eighty-four".