19420867024 has 40 divisors (see below), whose sum is σ = 42655151840. Its totient is φ = 8491713408.

The previous prime is 19420867019. The next prime is 19420867027. The reversal of 19420867024 is 42076802491.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19420867027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2453142 + ... + 2461045.

It is an arithmetic number, because the mean of its divisors is an integer number (1066378796).

Almost surely, 2^19420867024 is an apocalyptic number.

It is an amenable number.

19420867024 is an abundant number, since it is smaller than the sum of its proper divisors (23234284816).

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

19420867024 is a wasteful number, since it uses less digits than its factorization.

19420867024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4914227 (or 4914221 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 43.

The spelling of 19420867024 in words is "nineteen billion, four hundred twenty million, eight hundred sixty-seven thousand, twenty-four".