1213670432 has 24 divisors (see below), whose sum is σ = 2573215596. Its totient is φ = 560155392.

The previous prime is 1213670431. The next prime is 1213670449. The reversal of 1213670432 is 2340763121.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1191354256 + 22316176 = 34516^2 + 4724^2 .

It is a super-2 number, since 2×1213670432² = 2945991835022133248, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1213670395 and 1213670404.

It is not an unprimeable number, because it can be changed into a prime (1213670431) 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, 1458323 + ... + 1459154.

Almost surely, 2^1213670432 is an apocalyptic number.

It is an amenable number.

1213670432 is an abundant number, since it is smaller than the sum of its proper divisors (1359545164).

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

1213670432 is a wasteful number, since it uses less digits than its factorization.

1213670432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2917500 (or 2917492 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 1213670432 is about 34837.7730631566. The cubic root of 1213670432 is about 1066.6786203522.

The spelling of 1213670432 in words is "one billion, two hundred thirteen million, six hundred seventy thousand, four hundred thirty-two".