481143894 has 64 divisors (see below), whose sum is σ = 1270328832. Its totient is φ = 117619200.

The previous prime is 481143869. The next prime is 481143907. The reversal of 481143894 is 498341184.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22777 + ... + 38484.

It is an arithmetic number, because the mean of its divisors is an integer number (19848888).

Almost surely, 2^481143894 is an apocalyptic number.

481143894 is an abundant number, since it is smaller than the sum of its proper divisors (789184938).

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

481143894 is a wasteful number, since it uses less digits than its factorization.

481143894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61301.

The product of its digits is 110592, while the sum is 42.

The square root of 481143894 is about 21934.9924549793. The cubic root of 481143894 is about 783.5950061451.

The spelling of 481143894 in words is "four hundred eighty-one million, one hundred forty-three thousand, eight hundred ninety-four".