491442795 has 20 divisors (see below), whose sum is σ = 880957440. Its totient is φ = 262102608.

The previous prime is 491442737. The next prime is 491442799. The reversal of 491442795 is 597244194.

It is not a de Polignac number, because 491442795 - 2⁷ = 491442667 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 491442795.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (491442799) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 606315 + ... + 607124.

It is an arithmetic number, because the mean of its divisors is an integer number (44047872).

Almost surely, 2^491442795 is an apocalyptic number.

491442795 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

491442795 is a deficient number, since it is larger than the sum of its proper divisors (389514645).

491442795 is a wasteful number, since it uses less digits than its factorization.

491442795 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1213456 (or 1213447 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The square root of 491442795 is about 22168.5090838333. The cubic root of 491442795 is about 789.1465413306.

The spelling of 491442795 in words is "four hundred ninety-one million, four hundred forty-two thousand, seven hundred ninety-five".