2154540624 has 20 divisors (see below), whose sum is σ = 5565896736. Its totient is φ = 718180192.

The previous prime is 2154540613. The next prime is 2154540659. The reversal of 2154540624 is 4260454512.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 22443084 + ... + 22443179.

Almost surely, 2^2154540624 is an apocalyptic number.

2154540624 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2154540624 is an abundant number, since it is smaller than the sum of its proper divisors (3411356112).

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

2154540624 is a wasteful number, since it uses less digits than its factorization.

2154540624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44886274 (or 44886268 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 33.

The square root of 2154540624 is about 46417.0294611794. The cubic root of 2154540624 is about 1291.5708332498.

The spelling of 2154540624 in words is "two billion, one hundred fifty-four million, five hundred forty thousand, six hundred twenty-four".