1491466404 has 36 divisors (see below), whose sum is σ = 3604253744. Its totient is φ = 480008928.

The previous prime is 1491466391. The next prime is 1491466421. The reversal of 1491466404 is 4046641941.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 63802 + ... + 83985.

Almost surely, 2^1491466404 is an apocalyptic number.

It is an amenable number.

1491466404 is an abundant number, since it is smaller than the sum of its proper divisors (2112787340).

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

1491466404 is a wasteful number, since it uses less digits than its factorization.

1491466404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147852 (or 147821 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 39.

The square root of 1491466404 is about 38619.5080755827. The cubic root of 1491466404 is about 1142.5393287204.

It can be divided in two parts, 14914 and 66404, that added together give a palindrome (81318).

The spelling of 1491466404 in words is "one billion, four hundred ninety-one million, four hundred sixty-six thousand, four hundred four".