1623573532 has 24 divisors (see below), whose sum is σ = 3322664576. Its totient is φ = 679634928.

The previous prime is 1623573529. The next prime is 1623573533. The reversal of 1623573532 is 2353753261.

It is a junction number, because it is equal to n+sod(n) for n = 1623573491 and 1623573500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1623573533) 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, 673038 + ... + 675445.

Almost surely, 2^1623573532 is an apocalyptic number.

It is an amenable number.

1623573532 is an abundant number, since it is smaller than the sum of its proper divisors (1699091044).

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

1623573532 is a wasteful number, since it uses less digits than its factorization.

1623573532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1348537 (or 1348535 counting only the distinct ones).

The product of its digits is 113400, while the sum is 37.

The square root of 1623573532 is about 40293.5916989290. The cubic root of 1623573532 is about 1175.3232325159.

The spelling of 1623573532 in words is "one billion, six hundred twenty-three million, five hundred seventy-three thousand, five hundred thirty-two".