494317731 has 16 divisors (see below), whose sum is σ = 682768800. Its totient is φ = 317737728.

The previous prime is 494317729. The next prime is 494317739. The reversal of 494317731 is 137713494.

It is not a de Polignac number, because 494317731 - 2¹ = 494317729 is a prime.

It is a super-2 number, since 2×494317731² = 488700038361976722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 494317731.

It is not an unprimeable number, because it can be changed into a prime (494317739) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65775 + ... + 72903.

It is an arithmetic number, because the mean of its divisors is an integer number (42673050).

Almost surely, 2^494317731 is an apocalyptic number.

494317731 is a deficient number, since it is larger than the sum of its proper divisors (188451069).

494317731 is a wasteful number, since it uses less digits than its factorization.

494317731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7958.

The product of its digits is 63504, while the sum is 39.

The square root of 494317731 is about 22233.2573187106. The cubic root of 494317731 is about 790.6823837513.

The spelling of 494317731 in words is "four hundred ninety-four million, three hundred seventeen thousand, seven hundred thirty-one".