1493872385 has 4 divisors (see below), whose sum is σ = 1792646868. Its totient is φ = 1195097904.

The previous prime is 1493872339. The next prime is 1493872409. The reversal of 1493872385 is 5832783941.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 958273936 + 535598449 = 30956^2 + 23143^2 .

It is a cyclic number.

It is not a de Polignac number, because 1493872385 - 2²² = 1489678081 is a prime.

It is a Duffinian number.

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 3 ways as a sum of consecutive naturals, for example, 149387234 + ... + 149387243.

It is an arithmetic number, because the mean of its divisors is an integer number (448161717).

Almost surely, 2^1493872385 is an apocalyptic number.

It is an amenable number.

1493872385 is a deficient number, since it is larger than the sum of its proper divisors (298774483).

1493872385 is an equidigital number, since it uses as much as digits as its factorization.

1493872385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298774482.

The product of its digits is 1451520, while the sum is 50.

The square root of 1493872385 is about 38650.6453374326. The cubic root of 1493872385 is about 1143.1533667067.

The spelling of 1493872385 in words is "one billion, four hundred ninety-three million, eight hundred seventy-two thousand, three hundred eighty-five".