481999999 has 24 divisors (see below), whose sum is σ = 564386640. Its totient is φ = 410012928.

The previous prime is 481999957. The next prime is 482000009. The reversal of 481999999 is 999999184.

It is not a de Polignac number, because 481999999 - 2²⁷ = 347782271 is a prime.

481999999 is a modest number, since divided by 99999 gives 4819 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (481999919) 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, 116779 + ... + 120835.

It is an arithmetic number, because the mean of its divisors is an integer number (23516110).

Almost surely, 2^481999999 is an apocalyptic number.

481999999 is a deficient number, since it is larger than the sum of its proper divisors (82386641).

481999999 is a wasteful number, since it uses less digits than its factorization.

481999999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4139 (or 4126 counting only the distinct ones).

The product of its digits is 17006112, while the sum is 67.

The square root of 481999999 is about 21954.4983773258. The cubic root of 481999999 is about 784.0594840461.

The spelling of 481999999 in words is "four hundred eighty-one million, nine hundred ninety-nine thousand, nine hundred ninety-nine".