1213413432 has 64 divisors (see below), whose sum is σ = 3782073600. Its totient is φ = 315171840.

The previous prime is 1213413419. The next prime is 1213413463. The reversal of 1213413432 is 2343143121.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 326457 + ... + 330152.

It is an arithmetic number, because the mean of its divisors is an integer number (59094900).

Almost surely, 2^1213413432 is an apocalyptic number.

1213413432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1213413432 is an abundant number, since it is smaller than the sum of its proper divisors (2568660168).

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

1213413432 is a wasteful number, since it uses less digits than its factorization.

1213413432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 656636 (or 656632 counting only the distinct ones).

The product of its digits is 1728, while the sum is 24.

The square root of 1213413432 is about 34834.0843427813. The cubic root of 1213413432 is about 1066.6033237559.

Adding to 1213413432 its reverse (2343143121), we get a palindrome (3556556553).

The spelling of 1213413432 in words is "one billion, two hundred thirteen million, four hundred thirteen thousand, four hundred thirty-two".