19974970 has 16 divisors (see below), whose sum is σ = 36036000. Its totient is φ = 7971984.

The previous prime is 19974967. The next prime is 19975003. The reversal of 19974970 is 7947991.

It is a self number, because there is not a number n which added to its sum of digits gives 19974970.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2989 + ... + 6991.

It is an arithmetic number, because the mean of its divisors is an integer number (2252250).

Almost surely, 2^19974970 is an apocalyptic number.

19974970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19974970 is a deficient number, since it is larger than the sum of its proper divisors (16061030).

19974970 is a wasteful number, since it uses less digits than its factorization.

19974970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4509.

The product of its (nonzero) digits is 142884, while the sum is 46.

The square root of 19974970 is about 4469.3366398158. The cubic root of 19974970 is about 271.3284779332.

The spelling of 19974970 in words is "nineteen million, nine hundred seventy-four thousand, nine hundred seventy".