1491702794 has 16 divisors (see below), whose sum is σ = 2250131400. Its totient is φ = 741667584.

The previous prime is 1491702781. The next prime is 1491702803. The reversal of 1491702794 is 4972071941.

It can be written as a sum of positive squares in 4 ways, for example, as 1019205625 + 472497169 = 31925^2 + 21737^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 500942 + ... + 503910.

Almost surely, 2^1491702794 is an apocalyptic number.

1491702794 is a deficient number, since it is larger than the sum of its proper divisors (758428606).

1491702794 is a wasteful number, since it uses less digits than its factorization.

1491702794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4297.

The product of its (nonzero) digits is 127008, while the sum is 44.

The square root of 1491702794 is about 38622.5684542082. The cubic root of 1491702794 is about 1142.5996877968.

The spelling of 1491702794 in words is "one billion, four hundred ninety-one million, seven hundred two thousand, seven hundred ninety-four".