451967140 has 24 divisors (see below), whose sum is σ = 965220480. Its totient is φ = 177722208.

The previous prime is 451967123. The next prime is 451967141. The reversal of 451967140 is 41769154.

It is a self number, because there is not a number n which added to its sum of digits gives 451967140.

It is not an unprimeable number, because it can be changed into a prime (451967141) 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, 190332 + ... + 192691.

It is an arithmetic number, because the mean of its divisors is an integer number (40217520).

Almost surely, 2^451967140 is an apocalyptic number.

It is an amenable number.

451967140 is an abundant number, since it is smaller than the sum of its proper divisors (513253340).

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

451967140 is a wasteful number, since it uses less digits than its factorization.

451967140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383091 (or 383089 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 451967140 is about 21259.5188092299. The cubic root of 451967140 is about 767.4244299540.

The spelling of 451967140 in words is "four hundred fifty-one million, nine hundred sixty-seven thousand, one hundred forty".