2152756380 has 48 divisors (see below), whose sum is σ = 6044853024. Its totient is φ = 572436480.

The previous prime is 2152756363. The next prime is 2152756381. The reversal of 2152756380 is 836572512.

2152756380 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2152756381) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 29641 + ... + 72000.

It is an arithmetic number, because the mean of its divisors is an integer number (125934438).

Almost surely, 2^2152756380 is an apocalyptic number.

2152756380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2152756380 is an abundant number, since it is smaller than the sum of its proper divisors (3892096644).

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

2152756380 is a wasteful number, since it uses less digits than its factorization.

2152756380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102006 (or 102004 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 39.

The square root of 2152756380 is about 46397.8057670834. The cubic root of 2152756380 is about 1291.2142044145.

The spelling of 2152756380 in words is "two billion, one hundred fifty-two million, seven hundred fifty-six thousand, three hundred eighty".