19242019242 has 48 divisors (see below), whose sum is σ = 42147466920. Its totient is φ = 6343920000.

The previous prime is 19242019229. The next prime is 19242019249. The reversal of 19242019242 is 24291024291.

19242019242 is a `hidden beast` number, since 1 + 9 + 2 + 420 + 192 + 42 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 18651091761 + 590927481 = 136569^2 + 24309^2 .

It is a junction number, because it is equal to n+sod(n) for n = 19242019197 and 19242019206.

It is not an unprimeable number, because it can be changed into a prime (19242019249) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1938492 + ... + 1948392.

Almost surely, 2^19242019242 is an apocalyptic number.

19242019242 is an abundant number, since it is smaller than the sum of its proper divisors (22905447678).

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

19242019242 is a wasteful number, since it uses less digits than its factorization.

19242019242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11079 (or 11076 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The spelling of 19242019242 in words is "nineteen billion, two hundred forty-two million, nineteen thousand, two hundred forty-two".