494272591 has 4 divisors (see below), whose sum is σ = 497129832. Its totient is φ = 491415352.

The previous prime is 494272567. The next prime is 494272609. The reversal of 494272591 is 195272494.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-494272591 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (494272511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1428361 + ... + 1428706.

It is an arithmetic number, because the mean of its divisors is an integer number (124282458).

Almost surely, 2^494272591 is an apocalyptic number.

494272591 is a deficient number, since it is larger than the sum of its proper divisors (2857241).

494272591 is a wasteful number, since it uses less digits than its factorization.

494272591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2857240.

The product of its digits is 181440, while the sum is 43.

The square root of 494272591 is about 22232.2421496348. The cubic root of 494272591 is about 790.6583152308.

The spelling of 494272591 in words is "four hundred ninety-four million, two hundred seventy-two thousand, five hundred ninety-one".