481390380 has 72 divisors (see below), whose sum is σ = 1463756112. Its totient is φ = 128059776.

The previous prime is 481390367. The next prime is 481390421. The reversal of 481390380 is 83093184.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 76722 + ... + 82758.

It is an arithmetic number, because the mean of its divisors is an integer number (20329946).

Almost surely, 2^481390380 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 481390380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (731878056).

481390380 is an abundant number, since it is smaller than the sum of its proper divisors (982365732).

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

481390380 is a wasteful number, since it uses less digits than its factorization.

481390380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6495 (or 6490 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 481390380 is about 21940.6102923323. The cubic root of 481390380 is about 783.7287930283.

The spelling of 481390380 in words is "four hundred eighty-one million, three hundred ninety thousand, three hundred eighty".