1491012448 has 12 divisors (see below), whose sum is σ = 2935430820. Its totient is φ = 745506208.

The previous prime is 1491012433. The next prime is 1491012463. The reversal of 1491012448 is 8442101941.

It is an interprime number because it is at equal distance from previous prime (1491012433) and next prime (1491012463).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23297038 + ... + 23297101.

It is an arithmetic number, because the mean of its divisors is an integer number (244619235).

Almost surely, 2^1491012448 is an apocalyptic number.

It is an amenable number.

1491012448 is a deficient number, since it is larger than the sum of its proper divisors (1444418372).

1491012448 is an equidigital number, since it uses as much as digits as its factorization.

1491012448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46594149 (or 46594141 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 34.

The square root of 1491012448 is about 38613.6303395576. The cubic root of 1491012448 is about 1142.4233991420.

The spelling of 1491012448 in words is "one billion, four hundred ninety-one million, twelve thousand, four hundred forty-eight".