2152455420 has 24 divisors (see below), whose sum is σ = 6026875344. Its totient is φ = 573988096.

The previous prime is 2152455379. The next prime is 2152455463. The reversal of 2152455420 is 245542512.

2152455420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17937069 + ... + 17937188.

It is an arithmetic number, because the mean of its divisors is an integer number (251119806).

Almost surely, 2^2152455420 is an apocalyptic number.

2152455420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2152455420 is an abundant number, since it is smaller than the sum of its proper divisors (3874419924).

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

2152455420 is a wasteful number, since it uses less digits than its factorization.

2152455420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35874269 (or 35874267 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 30.

The square root of 2152455420 is about 46394.5623969016. The cubic root of 2152455420 is about 1291.1540300970.

Adding to 2152455420 its reverse (245542512), we get a palindrome (2397997932).

The spelling of 2152455420 in words is "two billion, one hundred fifty-two million, four hundred fifty-five thousand, four hundred twenty".