921248452 has 24 divisors (see below), whose sum is σ = 1721583360. Its totient is φ = 430392480.

The previous prime is 921248443. The next prime is 921248521. The reversal of 921248452 is 254842129.

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, 124498 + ... + 131689.

It is an arithmetic number, because the mean of its divisors is an integer number (71732640).

Almost surely, 2^921248452 is an apocalyptic number.

It is an amenable number.

921248452 is a deficient number, since it is larger than the sum of its proper divisors (800334908).

921248452 is a wasteful number, since it uses less digits than its factorization.

921248452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256251 (or 256249 counting only the distinct ones).

The product of its digits is 46080, while the sum is 37.

The square root of 921248452 is about 30352.0749208353. The cubic root of 921248452 is about 973.0285659423.

It can be divided in two parts, 92124 and 8452, that added together give a triangular number (100576 = T₄₄₈).

The spelling of 921248452 in words is "nine hundred twenty-one million, two hundred forty-eight thousand, four hundred fifty-two".