451490252 has 12 divisors (see below), whose sum is σ = 805016016. Its totient is φ = 221485680.

The previous prime is 451490197. The next prime is 451490261. The reversal of 451490252 is 252094154.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1064624 + ... + 1065047.

It is an arithmetic number, because the mean of its divisors is an integer number (67084668).

Almost surely, 2^451490252 is an apocalyptic number.

It is an amenable number.

451490252 is a deficient number, since it is larger than the sum of its proper divisors (353525764).

451490252 is a wasteful number, since it uses less digits than its factorization.

451490252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2129728 (or 2129726 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 451490252 is about 21248.2999790571. The cubic root of 451490252 is about 767.1544219062.

The spelling of 451490252 in words is "four hundred fifty-one million, four hundred ninety thousand, two hundred fifty-two".