451451040 has 48 divisors (see below), whose sum is σ = 1422072288. Its totient is φ = 120386816.

The previous prime is 451451009. The next prime is 451451059. The reversal of 451451040 is 40154154.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 451451040.

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, 469782 + ... + 470741.

It is an arithmetic number, because the mean of its divisors is an integer number (29626506).

Almost surely, 2^451451040 is an apocalyptic number.

451451040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

451451040 is an abundant number, since it is smaller than the sum of its proper divisors (970621248).

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

451451040 is a wasteful number, since it uses less digits than its factorization.

451451040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 940541 (or 940533 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 451451040 is about 21247.3772499102. The cubic root of 451451040 is about 767.1322121022.

The spelling of 451451040 in words is "four hundred fifty-one million, four hundred fifty-one thousand, forty".