2152906452 has 60 divisors (see below), whose sum is σ = 5959204020. Its totient is φ = 675419904.

The previous prime is 2152906429. The next prime is 2152906463. The reversal of 2152906452 is 2546092512.

2152906452 is a `hidden beast` number, since 2 + 1 + 5 + 2 + 9 + 0 + 645 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1718434116 + 434472336 = 41454^2 + 20844^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 189927 + ... + 200942.

It is an arithmetic number, because the mean of its divisors is an integer number (99320067).

Almost surely, 2^2152906452 is an apocalyptic number.

It is an amenable number.

2152906452 is an abundant number, since it is smaller than the sum of its proper divisors (3806297568).

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

2152906452 is a wasteful number, since it uses less digits than its factorization.

2152906452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390902 (or 390891 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The square root of 2152906452 is about 46399.4229705500. The cubic root of 2152906452 is about 1291.2442079017.

Adding to 2152906452 its reverse (2546092512), we get a palindrome (4698998964).

The spelling of 2152906452 in words is "two billion, one hundred fifty-two million, nine hundred six thousand, four hundred fifty-two".