19493002 has 4 divisors (see below), whose sum is σ = 29239506. Its totient is φ = 9746500.

The previous prime is 19492987. The next prime is 19493021. The reversal of 19493002 is 20039491.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 20039491 = 139 ⋅144169.

It can be written as a sum of positive squares in only one way, i.e., 13097161 + 6395841 = 3619^2 + 2529^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4873249 + ... + 4873252.

Almost surely, 2^19493002 is an apocalyptic number.

19493002 is a deficient number, since it is larger than the sum of its proper divisors (9746504).

19493002 is an equidigital number, since it uses as much as digits as its factorization.

19493002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9746503.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 19493002 is about 4415.0879945931. The cubic root of 19493002 is about 269.1284286991.

The spelling of 19493002 in words is "nineteen million, four hundred ninety-three thousand, two".