499993394 has 4 divisors (see below), whose sum is σ = 749990094. Its totient is φ = 249996696.

The previous prime is 499993369. The next prime is 499993421. The reversal of 499993394 is 493399994.

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

It can be written as a sum of positive squares in only one way, i.e., 389470225 + 110523169 = 19735^2 + 10513^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124998347 + ... + 124998350.

Almost surely, 2^499993394 is an apocalyptic number.

499993394 is a deficient number, since it is larger than the sum of its proper divisors (249996700).

499993394 is a wasteful number, since it uses less digits than its factorization.

499993394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249996699.

The product of its digits is 8503056, while the sum is 59.

The square root of 499993394 is about 22360.5320598594. The cubic root of 499993394 is about 793.6970305116.

The spelling of 499993394 in words is "four hundred ninety-nine million, nine hundred ninety-three thousand, three hundred ninety-four".