490783830 has 32 divisors (see below), whose sum is σ = 1197849600. Its totient is φ = 128656992.

The previous prime is 490783807. The next prime is 490783861. The reversal of 490783830 is 38387094.

It is an alternating number because its digits alternate between even and odd.

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 15 ways as a sum of consecutive naturals, for example, 136870 + ... + 140409.

It is an arithmetic number, because the mean of its divisors is an integer number (37432800).

Almost surely, 2^490783830 is an apocalyptic number.

490783830 is an abundant number, since it is smaller than the sum of its proper divisors (707065770).

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

490783830 is a wasteful number, since it uses less digits than its factorization.

490783830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277348.

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 490783830 is about 22153.6414613941. The cubic root of 490783830 is about 788.7936670612.

The spelling of 490783830 in words is "four hundred ninety million, seven hundred eighty-three thousand, eight hundred thirty".