19474994 has 16 divisors (see below), whose sum is σ = 36421056. Its totient is φ = 7587600.

The previous prime is 19474993. The next prime is 19474999. The reversal of 19474994 is 49947491.

It is not an unprimeable number, because it can be changed into a prime (19474991) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63077 + ... + 63384.

It is an arithmetic number, because the mean of its divisors is an integer number (2276316).

Almost surely, 2^19474994 is an apocalyptic number.

19474994 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

19474994 is a deficient number, since it is larger than the sum of its proper divisors (16946062).

19474994 is a wasteful number, since it uses less digits than its factorization.

19474994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126481.

The product of its digits is 326592, while the sum is 47.

The square root of 19474994 is about 4413.0481529211. The cubic root of 19474994 is about 269.0455278726.

The spelling of 19474994 in words is "nineteen million, four hundred seventy-four thousand, nine hundred ninety-four".