481649994 has 24 divisors (see below), whose sum is σ = 1192657440. Its totient is φ = 137614248.

The previous prime is 481649977. The next prime is 481649999. The reversal of 481649994 is 499946184.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 481649994.

It is not an unprimeable number, because it can be changed into a prime (481649999) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1911184 + ... + 1911435.

It is an arithmetic number, because the mean of its divisors is an integer number (49694060).

Almost surely, 2^481649994 is an apocalyptic number.

481649994 is an abundant number, since it is smaller than the sum of its proper divisors (711007446).

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

481649994 is a wasteful number, since it uses less digits than its factorization.

481649994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3822634 (or 3822631 counting only the distinct ones).

The product of its digits is 2239488, while the sum is 54.

The square root of 481649994 is about 21946.5257842785. The cubic root of 481649994 is about 783.8696561127.

The spelling of 481649994 in words is "four hundred eighty-one million, six hundred forty-nine thousand, nine hundred ninety-four".