19942446 has 16 divisors (see below), whose sum is σ = 40258944. Its totient is φ = 6585144.

The previous prime is 19942423. The next prime is 19942451. The reversal of 19942446 is 64424991.

It is a congruent number.

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, 14890 + ... + 16173.

It is an arithmetic number, because the mean of its divisors is an integer number (2516184).

Almost surely, 2^19942446 is an apocalyptic number.

19942446 is an abundant number, since it is smaller than the sum of its proper divisors (20316498).

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

19942446 is a wasteful number, since it uses less digits than its factorization.

19942446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31175.

The product of its digits is 62208, while the sum is 39.

The square root of 19942446 is about 4465.6965862002. The cubic root of 19942446 is about 271.1811355123.

The spelling of 19942446 in words is "nineteen million, nine hundred forty-two thousand, four hundred forty-six".