1613072232 has 40 divisors (see below), whose sum is σ = 4518097650. Its totient is φ = 537690528.

The previous prime is 1613072173. The next prime is 1613072243. The reversal of 1613072232 is 2322703161.

It can be written as a sum of positive squares in only one way, i.e., 1117297476 + 495774756 = 33426^2 + 22266^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 1613072196 and 1613072205.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1244007 + ... + 1245302.

Almost surely, 2^1613072232 is an apocalyptic number.

1613072232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1613072232 is an abundant number, since it is smaller than the sum of its proper divisors (2905025418).

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

1613072232 is a wasteful number, since it uses less digits than its factorization.

1613072232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2489327 (or 2489314 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 1613072232 is about 40163.0705001498. The cubic root of 1613072232 is about 1172.7837462160.

Adding to 1613072232 its reverse (2322703161), we get a palindrome (3935775393).

The spelling of 1613072232 in words is "one billion, six hundred thirteen million, seventy-two thousand, two hundred thirty-two".