1452638252 has 24 divisors (see below), whose sum is σ = 2764253856. Its totient is φ = 663936768.

The previous prime is 1452638251. The next prime is 1452638309. The reversal of 1452638252 is 2528362541.

It is a happy number.

It is a super-2 number, since 2×1452638252² = 4220315782347231008, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1452638251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130253 + ... + 140964.

It is an arithmetic number, because the mean of its divisors is an integer number (115177244).

Almost surely, 2^1452638252 is an apocalyptic number.

It is an amenable number.

1452638252 is a deficient number, since it is larger than the sum of its proper divisors (1311615604).

1452638252 is a wasteful number, since it uses less digits than its factorization.

1452638252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271337 (or 271335 counting only the distinct ones).

The product of its digits is 115200, while the sum is 38.

The square root of 1452638252 is about 38113.4917319314. The cubic root of 1452638252 is about 1132.5372418137.

The spelling of 1452638252 in words is "one billion, four hundred fifty-two million, six hundred thirty-eight thousand, two hundred fifty-two".