491154244 has 27 divisors (see below), whose sum is σ = 1000481727. Its totient is φ = 210361704.

The previous prime is 491154229. The next prime is 491154253. The reversal of 491154244 is 442451194.

It is a happy number.

The square root of 491154244 is 22162.

It is a perfect power (a square), and thus also a powerful number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 309477 + ... + 311059.

Almost surely, 2^491154244 is an apocalyptic number.

491154244 is the 22162-nd square number.

It is an amenable number.

491154244 is an abundant number, since it is smaller than the sum of its proper divisors (509327483).

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

491154244 is an equidigital number, since it uses as much as digits as its factorization.

491154244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3184 (or 1592 counting only the distinct ones).

The product of its digits is 23040, while the sum is 34.

The cubic root of 491154244 is about 788.9920617676.

The spelling of 491154244 in words is "four hundred ninety-one million, one hundred fifty-four thousand, two hundred forty-four".