1491246268 has 12 divisors (see below), whose sum is σ = 2665206432. Its totient is φ = 729758720.

The previous prime is 1491246259. The next prime is 1491246277. The reversal of 1491246268 is 8626421941.

It is an interprime number because it is at equal distance from previous prime (1491246259) and next prime (1491246277).

It is a congruent number.

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, 3965893 + ... + 3966268.

It is an arithmetic number, because the mean of its divisors is an integer number (222100536).

Almost surely, 2^1491246268 is an apocalyptic number.

It is an amenable number.

1491246268 is a deficient number, since it is larger than the sum of its proper divisors (1173960164).

1491246268 is a wasteful number, since it uses less digits than its factorization.

1491246268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7932212 (or 7932210 counting only the distinct ones).

The product of its digits is 165888, while the sum is 43.

The square root of 1491246268 is about 38616.6579082137. The cubic root of 1491246268 is about 1142.4831141537.

The spelling of 1491246268 in words is "one billion, four hundred ninety-one million, two hundred forty-six thousand, two hundred sixty-eight".