1623133452 has 24 divisors (see below), whose sum is σ = 3789078832. Its totient is φ = 540792000.

The previous prime is 1623133411. The next prime is 1623133459. The reversal of 1623133452 is 2543313261.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (1623133459) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3799 + ... + 57102.

Almost surely, 2^1623133452 is an apocalyptic number.

1623133452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1623133452 is an abundant number, since it is smaller than the sum of its proper divisors (2165945380).

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

1623133452 is a wasteful number, since it uses less digits than its factorization.

1623133452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63129 (or 63127 counting only the distinct ones).

The product of its digits is 12960, while the sum is 30.

The square root of 1623133452 is about 40288.1304108294. The cubic root of 1623133452 is about 1175.2170299575.

The spelling of 1623133452 in words is "one billion, six hundred twenty-three million, one hundred thirty-three thousand, four hundred fifty-two".