1243225732 has 12 divisors (see below), whose sum is σ = 2486451520. Its totient is φ = 532811016.

The previous prime is 1243225729. The next prime is 1243225783. The reversal of 1243225732 is 2375223421.

1243225732 is an admirable number.

It is a super-2 number, since 2×1243225732² = 3091220441413871648, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1243225694 and 1243225703.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22200432 + ... + 22200487.

Almost surely, 2^1243225732 is an apocalyptic number.

It is an amenable number.

1243225732 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1243225732 is a wasteful number, since it uses less digits than its factorization.

1243225732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44400930 (or 44400928 counting only the distinct ones).

The product of its digits is 20160, while the sum is 31.

The square root of 1243225732 is about 35259.4062910878. The cubic root of 1243225732 is about 1075.2678566709.

The spelling of 1243225732 in words is "one billion, two hundred forty-three million, two hundred twenty-five thousand, seven hundred thirty-two".