493256394 has 24 divisors (see below), whose sum is σ = 1131588900. Its totient is φ = 154747008.

The previous prime is 493256381. The next prime is 493256471. The reversal of 493256394 is 493652394.

493256394 is a `hidden beast` number, since 4 + 9 + 3 + 2 + 5 + 639 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 483428169 + 9828225 = 21987^2 + 3135^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 805669 + ... + 806280.

Almost surely, 2^493256394 is an apocalyptic number.

493256394 is an abundant number, since it is smaller than the sum of its proper divisors (638332506).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

493256394 is a wasteful number, since it uses less digits than its factorization.

493256394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1611974 (or 1611971 counting only the distinct ones).

The product of its digits is 699840, while the sum is 45.

The square root of 493256394 is about 22209.3762631912. The cubic root of 493256394 is about 790.1160936048.

The spelling of 493256394 in words is "four hundred ninety-three million, two hundred fifty-six thousand, three hundred ninety-four".