1491226364 has 24 divisors (see below), whose sum is σ = 2629466448. Its totient is φ = 739964160.

The previous prime is 1491226351. The next prime is 1491226379. The reversal of 1491226364 is 4636221941.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 635834 + ... + 638174.

It is an arithmetic number, because the mean of its divisors is an integer number (109561102).

Almost surely, 2^1491226364 is an apocalyptic number.

It is an amenable number.

1491226364 is a deficient number, since it is larger than the sum of its proper divisors (1138240084).

1491226364 is a wasteful number, since it uses less digits than its factorization.

1491226364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3485 (or 3483 counting only the distinct ones).

The product of its digits is 62208, while the sum is 38.

The square root of 1491226364 is about 38616.4001947359. The cubic root of 1491226364 is about 1142.4780311379.

The spelling of 1491226364 in words is "one billion, four hundred ninety-one million, two hundred twenty-six thousand, three hundred sixty-four".