481845840 has 80 divisors (see below), whose sum is σ = 1707116928. Its totient is φ = 110135808.

The previous prime is 481845839. The next prime is 481845887. The reversal of 481845840 is 48548184.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 481845792 and 481845801.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 141727 + ... + 145086.

Almost surely, 2^481845840 is an apocalyptic number.

481845840 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

481845840 is an abundant number, since it is smaller than the sum of its proper divisors (1225271088).

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

481845840 is a wasteful number, since it uses less digits than its factorization.

481845840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286836 (or 286830 counting only the distinct ones).

The product of its (nonzero) digits is 163840, while the sum is 42.

The square root of 481845840 is about 21950.9872215352. The cubic root of 481845840 is about 783.9758860416.

The spelling of 481845840 in words is "four hundred eighty-one million, eight hundred forty-five thousand, eight hundred forty".