1814647494 has 16 divisors (see below), whose sum is σ = 3959231040. Its totient is φ = 549893160.

The previous prime is 1814647493. The next prime is 1814647543. The reversal of 1814647494 is 4947464181.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1814647493) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13747264 + ... + 13747395.

It is an arithmetic number, because the mean of its divisors is an integer number (247451940).

Almost surely, 2^1814647494 is an apocalyptic number.

1814647494 is an abundant number, since it is smaller than the sum of its proper divisors (2144583546).

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

1814647494 is a wasteful number, since it uses less digits than its factorization.

1814647494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27494675.

The product of its digits is 774144, while the sum is 48.

The square root of 1814647494 is about 42598.6794865756. The cubic root of 1814647494 is about 1219.7310824466.

The spelling of 1814647494 in words is "one billion, eight hundred fourteen million, six hundred forty-seven thousand, four hundred ninety-four".