19748394 has 32 divisors (see below), whose sum is σ = 44087040. Its totient is φ = 6552576.

The previous prime is 19748387. The next prime is 19748401. The reversal of 19748394 is 49384791.

It is an interprime number because it is at equal distance from previous prime (19748387) and next prime (19748401).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13167 + ... + 14589.

It is an arithmetic number, because the mean of its divisors is an integer number (1377720).

Almost surely, 2^19748394 is an apocalyptic number.

19748394 is an abundant number, since it is smaller than the sum of its proper divisors (24338646).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19748394 is a wasteful number, since it uses less digits than its factorization.

19748394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1691 (or 1685 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The square root of 19748394 is about 4443.9165158675. The cubic root of 19748394 is about 270.2986818134.

The spelling of 19748394 in words is "nineteen million, seven hundred forty-eight thousand, three hundred ninety-four".