499749291 has 16 divisors (see below), whose sum is σ = 741759520. Its totient is φ = 332540640.

The previous prime is 499749281. The next prime is 499749301. The reversal of 499749291 is 192947994.

It is an interprime number because it is at equal distance from previous prime (499749281) and next prime (499749301).

It is not a de Polignac number, because 499749291 - 2⁷ = 499749163 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (499749281) 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, 2500 + ... + 31713.

It is an arithmetic number, because the mean of its divisors is an integer number (46359970).

Almost surely, 2^499749291 is an apocalyptic number.

499749291 is a deficient number, since it is larger than the sum of its proper divisors (242010229).

499749291 is a wasteful number, since it uses less digits than its factorization.

499749291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34763 (or 34757 counting only the distinct ones).

The product of its digits is 1469664, while the sum is 54.

The square root of 499749291 is about 22355.0730484157. The cubic root of 499749291 is about 793.5678452287.

The spelling of 499749291 in words is "four hundred ninety-nine million, seven hundred forty-nine thousand, two hundred ninety-one".