499278393 has 12 divisors (see below), whose sum is σ = 724958208. Its totient is φ = 331108440.

The previous prime is 499278347. The next prime is 499278419. The reversal of 499278393 is 393872994.

It is not a de Polignac number, because 499278393 - 2¹² = 499274297 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (499278313) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 143505 + ... + 146942.

It is an arithmetic number, because the mean of its divisors is an integer number (60413184).

Almost surely, 2^499278393 is an apocalyptic number.

It is an amenable number.

499278393 is a deficient number, since it is larger than the sum of its proper divisors (225679815).

499278393 is a wasteful number, since it uses less digits than its factorization.

499278393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290644 (or 290641 counting only the distinct ones).

The product of its digits is 2939328, while the sum is 54.

The square root of 499278393 is about 22344.5383259534. The cubic root of 499278393 is about 793.3185155806.

The spelling of 499278393 in words is "four hundred ninety-nine million, two hundred seventy-eight thousand, three hundred ninety-three".