490379638 has 32 divisors (see below), whose sum is σ = 884183040. Its totient is φ = 199536480.

The previous prime is 490379627. The next prime is 490379641. The reversal of 490379638 is 836973094.

It is a super-2 number, since 2×490379638² = 480944378730022088, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 490379591 and 490379600.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12343 + ... + 33661.

It is an arithmetic number, because the mean of its divisors is an integer number (27630720).

Almost surely, 2^490379638 is an apocalyptic number.

490379638 is a deficient number, since it is larger than the sum of its proper divisors (393803402).

490379638 is a wasteful number, since it uses less digits than its factorization.

490379638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21412.

The product of its (nonzero) digits is 979776, while the sum is 49.

The square root of 490379638 is about 22144.5171092079. The cubic root of 490379638 is about 788.5770668430.

The spelling of 490379638 in words is "four hundred ninety million, three hundred seventy-nine thousand, six hundred thirty-eight".