491022355 has 16 divisors (see below), whose sum is σ = 604412928. Its totient is φ = 382720000.

The previous prime is 491022347. The next prime is 491022379. The reversal of 491022355 is 553220194.

It is not a de Polignac number, because 491022355 - 2³ = 491022347 is a prime.

It is a super-2 number, since 2×491022355² = 482205906219492050, which contains 22 as substring.

It is a Duffinian 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, 234915 + ... + 236995.

It is an arithmetic number, because the mean of its divisors is an integer number (37775808).

Almost surely, 2^491022355 is an apocalyptic number.

491022355 is a deficient number, since it is larger than the sum of its proper divisors (113390573).

491022355 is a wasteful number, since it uses less digits than its factorization.

491022355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3278.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 491022355 is about 22159.0242339323. The cubic root of 491022355 is about 788.9214331134.

The spelling of 491022355 in words is "four hundred ninety-one million, twenty-two thousand, three hundred fifty-five".