481291840 has 28 divisors (see below), whose sum is σ = 1146076956. Its totient is φ = 192516608.

The previous prime is 481291817. The next prime is 481291883. The reversal of 481291840 is 48192184.

It can be written as a sum of positive squares in 2 ways, for example, as 375119424 + 106172416 = 19368^2 + 10304^2 .

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 481291840.

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, 751699 + ... + 752338.

Almost surely, 2^481291840 is an apocalyptic number.

481291840 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

481291840 is an abundant number, since it is smaller than the sum of its proper divisors (664785116).

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

481291840 is a wasteful number, since it uses less digits than its factorization.

481291840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1504054 (or 1504044 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 37.

The square root of 481291840 is about 21938.3645698580. The cubic root of 481291840 is about 783.6753132825.

The spelling of 481291840 in words is "four hundred eighty-one million, two hundred ninety-one thousand, eight hundred forty".