451491960 has 32 divisors (see below), whose sum is σ = 1354476240. Its totient is φ = 120397824.

The previous prime is 451491919. The next prime is 451491961. The reversal of 451491960 is 69194154.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (451491961) 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, 1881097 + ... + 1881336.

Almost surely, 2^451491960 is an apocalyptic number.

451491960 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

451491960 is an abundant number, since it is smaller than the sum of its proper divisors (902984280).

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

451491960 is a wasteful number, since it uses less digits than its factorization.

451491960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3762447 (or 3762443 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 39.

The square root of 451491960 is about 21248.3401704698. The cubic root of 451491960 is about 767.1553892937.

The spelling of 451491960 in words is "four hundred fifty-one million, four hundred ninety-one thousand, nine hundred sixty".