19838006040 has 32 divisors (see below), whose sum is σ = 59514018480. Its totient is φ = 5290134912.

The previous prime is 19838006029. The next prime is 19838006057. The reversal of 19838006040 is 4060083891.

It is a self number, because there is not a number n which added to its sum of digits gives 19838006040.

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, 82658239 + ... + 82658478.

Almost surely, 2^19838006040 is an apocalyptic number.

19838006040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19838006040 is an abundant number, since it is smaller than the sum of its proper divisors (39676012440).

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

19838006040 is a wasteful number, since it uses less digits than its factorization.

19838006040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165316731 (or 165316727 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 39.

The spelling of 19838006040 in words is "nineteen billion, eight hundred thirty-eight million, six thousand, forty".