492149803 has 4 divisors (see below), whose sum is σ = 492199560. Its totient is φ = 492100048.

The previous prime is 492149789. The next prime is 492149843. The reversal of 492149803 is 308941294.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 308941294 = 2 ⋅154470647.

It is a cyclic number.

It is not a de Polignac number, because 492149803 - 2⁵ = 492149771 is a prime.

It is a super-2 number, since 2×492149803² = 484422857185877618, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (492149843) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4450 + ... + 31687.

It is an arithmetic number, because the mean of its divisors is an integer number (123049890).

Almost surely, 2^492149803 is an apocalyptic number.

492149803 is a deficient number, since it is larger than the sum of its proper divisors (49757).

492149803 is a wasteful number, since it uses less digits than its factorization.

492149803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49756.

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 492149803 is about 22184.4495762234. The cubic root of 492149803 is about 789.5247919177.

The spelling of 492149803 in words is "four hundred ninety-two million, one hundred forty-nine thousand, eight hundred three".