1491423424 has 28 divisors (see below), whose sum is σ = 2960790624. Its totient is φ = 745397504.

The previous prime is 1491423419. The next prime is 1491423433. The reversal of 1491423424 is 4243241941.

It is a self number, because there is not a number n which added to its sum of digits gives 1491423424.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 253929 + ... + 259735.

Almost surely, 2^1491423424 is an apocalyptic number.

It is an amenable number.

1491423424 is a deficient number, since it is larger than the sum of its proper divisors (1469367200).

1491423424 is an equidigital number, since it uses as much as digits as its factorization.

1491423424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9832 (or 9822 counting only the distinct ones).

The product of its digits is 27648, while the sum is 34.

The square root of 1491423424 is about 38618.9516170494. The cubic root of 1491423424 is about 1142.5283536576.

The spelling of 1491423424 in words is "one billion, four hundred ninety-one million, four hundred twenty-three thousand, four hundred twenty-four".