19304240392 has 32 divisors (see below), whose sum is σ = 37374036480. Its totient is φ = 9338014080.

The previous prime is 19304240381. The next prime is 19304240419. The reversal of 19304240392 is 29304240391.

It is a super-2 number, since 2×19304240392² (a number of 21 digits) contains 22 as substring.

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, 1020573 + ... + 1039315.

It is an arithmetic number, because the mean of its divisors is an integer number (1167938640).

Almost surely, 2^19304240392 is an apocalyptic number.

It is an amenable number.

19304240392 is a deficient number, since it is larger than the sum of its proper divisors (18069796088).

19304240392 is a wasteful number, since it uses less digits than its factorization.

19304240392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22933 (or 22929 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 37.

Subtracting 19304240392 from its reverse (29304240391), we obtain a palindrome (9999999999).

The spelling of 19304240392 in words is "nineteen billion, three hundred four million, two hundred forty thousand, three hundred ninety-two".