19974476 has 6 divisors (see below), whose sum is σ = 34955340. Its totient is φ = 9987236.

The previous prime is 19974469. The next prime is 19974497. The reversal of 19974476 is 67447991.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 19974476.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2496806 + ... + 2496813.

It is an arithmetic number, because the mean of its divisors is an integer number (5825890).

Almost surely, 2^19974476 is an apocalyptic number.

It is an amenable number.

19974476 is a deficient number, since it is larger than the sum of its proper divisors (14980864).

19974476 is a wasteful number, since it uses less digits than its factorization.

19974476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4993623 (or 4993621 counting only the distinct ones).

The product of its digits is 381024, while the sum is 47.

The square root of 19974476 is about 4469.2813740019. The cubic root of 19974476 is about 271.3262411777.

The spelling of 19974476 in words is "nineteen million, nine hundred seventy-four thousand, four hundred seventy-six".