481421520 has 120 divisors (see below), whose sum is σ = 1620988512. Its totient is φ = 128044800.

The previous prime is 481421519. The next prime is 481421527. The reversal of 481421520 is 25124184.

It is a tau number, because it is divible by the number of its divisors (120).

It is a super-2 number, since 2×481421520² = 463533359838220800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (481421527) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 410535 + ... + 411705.

Almost surely, 2^481421520 is an apocalyptic number.

481421520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 481421520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (810494256).

481421520 is an abundant number, since it is smaller than the sum of its proper divisors (1139566992).

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

481421520 is a wasteful number, since it uses less digits than its factorization.

481421520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1761 (or 1752 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 27.

The square root of 481421520 is about 21941.3199238332. The cubic root of 481421520 is about 783.7456918485.

The spelling of 481421520 in words is "four hundred eighty-one million, four hundred twenty-one thousand, five hundred twenty".