19941429442 has 48 divisors (see below), whose sum is σ = 35802748800. Its totient is φ = 8291052000.

The previous prime is 19941429349. The next prime is 19941429457. The reversal of 19941429442 is 24492414991.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 58567 + ... + 208117.

It is an arithmetic number, because the mean of its divisors is an integer number (745890600).

Almost surely, 2^19941429442 is an apocalyptic number.

19941429442 is a deficient number, since it is larger than the sum of its proper divisors (15861319358).

19941429442 is a wasteful number, since it uses less digits than its factorization.

19941429442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149623 (or 149612 counting only the distinct ones).

The product of its digits is 746496, while the sum is 49.

The spelling of 19941429442 in words is "nineteen billion, nine hundred forty-one million, four hundred twenty-nine thousand, four hundred forty-two".