491020194 has 16 divisors (see below), whose sum is σ = 1122331968. Its totient is φ = 140291472.

The previous prime is 491020181. The next prime is 491020213.

491020194 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×491020194² = 482201661831595272, which contains 22 as substring.

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, 5845437 + ... + 5845520.

It is an arithmetic number, because the mean of its divisors is an integer number (70145748).

Almost surely, 2^491020194 is an apocalyptic number.

491020194 is an abundant number, since it is smaller than the sum of its proper divisors (631311774).

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

491020194 is a wasteful number, since it uses less digits than its factorization.

491020194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11690969.

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 491020194 is about 22158.9754727063. The cubic root of 491020194 is about 788.9202757583.

The spelling of 491020194 in words is "four hundred ninety-one million, twenty thousand, one hundred ninety-four".