1671494394 has 32 divisors (see below), whose sum is σ = 3455262720. Its totient is φ = 538498800.

The previous prime is 1671494389. The next prime is 1671494413. The reversal of 1671494394 is 4934941761.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 150699 + ... + 161409.

It is an arithmetic number, because the mean of its divisors is an integer number (107976960).

Almost surely, 2^1671494394 is an apocalyptic number.

1671494394 is an abundant number, since it is smaller than the sum of its proper divisors (1783768326).

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

1671494394 is a wasteful number, since it uses less digits than its factorization.

1671494394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11586.

The product of its digits is 653184, while the sum is 48.

The square root of 1671494394 is about 40883.9136336041. The cubic root of 1671494394 is about 1186.7747786694.

The spelling of 1671494394 in words is "one billion, six hundred seventy-one million, four hundred ninety-four thousand, three hundred ninety-four".