12452920 has 16 divisors (see below), whose sum is σ = 28019160. Its totient is φ = 4981152.

The previous prime is 12452899. The next prime is 12452927. The reversal of 12452920 is 2925421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12452927) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 155622 + ... + 155701.

Almost surely, 2^12452920 is an apocalyptic number.

12452920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12452920 is an abundant number, since it is smaller than the sum of its proper divisors (15566240).

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

12452920 is a wasteful number, since it uses less digits than its factorization.

12452920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311334 (or 311330 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 12452920 is about 3528.8695073635. The cubic root of 12452920 is about 231.7877071074.

The spelling of 12452920 in words is "twelve million, four hundred fifty-two thousand, nine hundred twenty".