493490394 has 20 divisors (see below), whose sum is σ = 1105784394. Its totient is φ = 164496744.

The previous prime is 493490383. The next prime is 493490411. The reversal of 493490394 is 493094394.

It can be written as a sum of positive squares in only one way, i.e., 463842369 + 29648025 = 21537^2 + 5445^2 .

It is a super-3 number, since 3×493490394³ (a number of 27 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1522957 + ... + 1523280.

Almost surely, 2^493490394 is an apocalyptic number.

493490394 is an abundant number, since it is smaller than the sum of its proper divisors (612294000).

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

493490394 is a wasteful number, since it uses less digits than its factorization.

493490394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3046251 (or 3046242 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 45.

The square root of 493490394 is about 22214.6436838406. The cubic root of 493490394 is about 790.2410170990.

The spelling of 493490394 in words is "four hundred ninety-three million, four hundred ninety thousand, three hundred ninety-four".