19332045840 has 40 divisors (see below), whose sum is σ = 59929342848. Its totient is φ = 5155212160.

The previous prime is 19332045829. The next prime is 19332045877. The reversal of 19332045840 is 4854023391.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×19332045840² (a number of 21 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40274856 + ... + 40275335.

Almost surely, 2^19332045840 is an apocalyptic number.

19332045840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19332045840 is an abundant number, since it is smaller than the sum of its proper divisors (40597297008).

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

19332045840 is a wasteful number, since it uses less digits than its factorization.

19332045840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80550207 (or 80550201 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 39.

The spelling of 19332045840 in words is "nineteen billion, three hundred thirty-two million, forty-five thousand, eight hundred forty".