491376394 has 16 divisors (see below), whose sum is σ = 756965088. Its totient is φ = 239096592.

The previous prime is 491376383. The next prime is 491376401. The reversal of 491376394 is 493673194.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13509 + ... + 34135.

It is an arithmetic number, because the mean of its divisors is an integer number (47310318).

Almost surely, 2^491376394 is an apocalyptic number.

491376394 is a deficient number, since it is larger than the sum of its proper divisors (265588694).

491376394 is a wasteful number, since it uses less digits than its factorization.

491376394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20949.

The product of its digits is 489888, while the sum is 46.

The square root of 491376394 is about 22167.0113908032. The cubic root of 491376394 is about 789.1109980418.

The spelling of 491376394 in words is "four hundred ninety-one million, three hundred seventy-six thousand, three hundred ninety-four".