490877646 has 16 divisors (see below), whose sum is σ = 1122006144. Its totient is φ = 140250744.

The previous prime is 490877641. The next prime is 490877659. The reversal of 490877646 is 646778094.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (490877641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5843740 + ... + 5843823.

It is an arithmetic number, because the mean of its divisors is an integer number (70125384).

Almost surely, 2^490877646 is an apocalyptic number.

490877646 is an abundant number, since it is smaller than the sum of its proper divisors (631128498).

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

490877646 is a wasteful number, since it uses less digits than its factorization.

490877646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11687575.

The product of its (nonzero) digits is 2032128, while the sum is 51.

The square root of 490877646 is about 22155.7587547798. The cubic root of 490877646 is about 788.8439245931.

The spelling of 490877646 in words is "four hundred ninety million, eight hundred seventy-seven thousand, six hundred forty-six".