2157804024 has 16 divisors (see below), whose sum is σ = 5394510120. Its totient is φ = 719268000.

The previous prime is 2157804023. The next prime is 2157804029. The reversal of 2157804024 is 4204087512.

2157804024 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2157804024² = 9312236411981185152, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2157804023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44954227 + ... + 44954274.

Almost surely, 2^2157804024 is an apocalyptic number.

2157804024 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2157804024 is an abundant number, since it is smaller than the sum of its proper divisors (3236706096).

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

2157804024 is a wasteful number, since it uses less digits than its factorization.

2157804024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89908510 (or 89908506 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 33.

The square root of 2157804024 is about 46452.1692066151. The cubic root of 2157804024 is about 1292.2226018826. Note that the first 3 decimals are identical.

The spelling of 2157804024 in words is "two billion, one hundred fifty-seven million, eight hundred four thousand, twenty-four".