19942146 has 32 divisors (see below), whose sum is σ = 50647680. Its totient is φ = 5697648.

The previous prime is 19942129. The next prime is 19942187. The reversal of 19942146 is 64124991.

It is a happy number.

19942146 is a `hidden beast` number, since 199 + 421 + 46 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 19942146.

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, 26001 + ... + 26756.

It is an arithmetic number, because the mean of its divisors is an integer number (1582740).

Almost surely, 2^19942146 is an apocalyptic number.

19942146 is an abundant number, since it is smaller than the sum of its proper divisors (30705534).

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

19942146 is a wasteful number, since it uses less digits than its factorization.

19942146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52775 (or 52769 counting only the distinct ones).

The product of its digits is 15552, while the sum is 36.

The square root of 19942146 is about 4465.6629966893. The cubic root of 19942146 is about 271.1797756866.

The spelling of 19942146 in words is "nineteen million, nine hundred forty-two thousand, one hundred forty-six".