423641252 has 24 divisors (see below), whose sum is σ = 781314240. Its totient is φ = 200435040.

The previous prime is 423641237. The next prime is 423641261. The reversal of 423641252 is 252146324.

It is a super-2 number, since 2×423641252² = 358943820792255008, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72977 + ... + 78567.

It is an arithmetic number, because the mean of its divisors is an integer number (32554760).

Almost surely, 2^423641252 is an apocalyptic number.

It is an amenable number.

423641252 is a deficient number, since it is larger than the sum of its proper divisors (357672988).

423641252 is a wasteful number, since it uses less digits than its factorization.

423641252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6611 (or 6609 counting only the distinct ones).

The product of its digits is 11520, while the sum is 29.

The square root of 423641252 is about 20582.5472670416. The cubic root of 423641252 is about 751.0452105551.

Adding to 423641252 its reverse (252146324), we get a palindrome (675787576).

The spelling of 423641252 in words is "four hundred twenty-three million, six hundred forty-one thousand, two hundred fifty-two".