481660388 has 48 divisors (see below), whose sum is σ = 1015991424. Its totient is φ = 197091840.

The previous prime is 481660373. The next prime is 481660409. The reversal of 481660388 is 883066184.

It is a Harshad number since it is a multiple of its sum of digits (44).

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, 3206 + ... + 31202.

It is an arithmetic number, because the mean of its divisors is an integer number (21166488).

Almost surely, 2^481660388 is an apocalyptic number.

It is an amenable number.

481660388 is an abundant number, since it is smaller than the sum of its proper divisors (534331036).

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

481660388 is a wasteful number, since it uses less digits than its factorization.

481660388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28052 (or 28050 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 44.

The square root of 481660388 is about 21946.7625858576. The cubic root of 481660388 is about 783.8752947041.

The spelling of 481660388 in words is "four hundred eighty-one million, six hundred sixty thousand, three hundred eighty-eight".