493640815 has 8 divisors (see below), whose sum is σ = 627214320. Its totient is φ = 371682432.

The previous prime is 493640803. The next prime is 493640821. The reversal of 493640815 is 518046394.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 493640815 - 2⁷ = 493640687 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2903685 + ... + 2903854.

It is an arithmetic number, because the mean of its divisors is an integer number (78401790).

Almost surely, 2^493640815 is an apocalyptic number.

493640815 is a deficient number, since it is larger than the sum of its proper divisors (133573505).

493640815 is a wasteful number, since it uses less digits than its factorization.

493640815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5807561.

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 493640815 is about 22218.0290530011. The cubic root of 493640815 is about 790.3213001670.

The spelling of 493640815 in words is "four hundred ninety-three million, six hundred forty thousand, eight hundred fifteen".