481399686 has 20 divisors (see below), whose sum is σ = 1078692252. Its totient is φ = 160466508.

The previous prime is 481399657. The next prime is 481399691. The reversal of 481399686 is 686993184.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1485640 + ... + 1485963.

Almost surely, 2^481399686 is an apocalyptic number.

481399686 is an abundant number, since it is smaller than the sum of its proper divisors (597292566).

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

481399686 is a wasteful number, since it uses less digits than its factorization.

481399686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2971617 (or 2971608 counting only the distinct ones).

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

The square root of 481399686 is about 21940.8223638040. The cubic root of 481399686 is about 783.7338432145.

The spelling of 481399686 in words is "four hundred eighty-one million, three hundred ninety-nine thousand, six hundred eighty-six".