494720215 has 16 divisors (see below), whose sum is σ = 653373216. Its totient is φ = 356608000.

The previous prime is 494720189. The next prime is 494720267. The reversal of 494720215 is 512027494.

It is a de Polignac number, because none of the positive numbers 2^k-494720215 is a prime.

It is a super-2 number, since 2×494720215² = 489496182259292450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33586 + ... + 46015.

It is an arithmetic number, because the mean of its divisors is an integer number (40835826).

Almost surely, 2^494720215 is an apocalyptic number.

494720215 is a deficient number, since it is larger than the sum of its proper divisors (158653001).

494720215 is a wasteful number, since it uses less digits than its factorization.

494720215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79730.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 494720215 is about 22242.3068722648. The cubic root of 494720215 is about 790.8969223337.

The spelling of 494720215 in words is "four hundred ninety-four million, seven hundred twenty thousand, two hundred fifteen".