451040540 has 24 divisors (see below), whose sum is σ = 948741360. Its totient is φ = 180119808.

The previous prime is 451040537. The next prime is 451040581. The reversal of 451040540 is 45040154.

It is a congruent number.

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, 5837 + ... + 30596.

It is an arithmetic number, because the mean of its divisors is an integer number (39530890).

Almost surely, 2^451040540 is an apocalyptic number.

It is an amenable number.

451040540 is an abundant number, since it is smaller than the sum of its proper divisors (497700820).

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

451040540 is a wasteful number, since it uses less digits than its factorization.

451040540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37061 (or 37059 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 451040540 is about 21237.7150371691. The cubic root of 451040540 is about 766.8996263281.

Adding to 451040540 its reverse (45040154), we get a palindrome (496080694).

The spelling of 451040540 in words is "four hundred fifty-one million, forty thousand, five hundred forty".