19292034840 has 128 divisors (see below), whose sum is σ = 62396006400. Its totient is φ = 4743636480.

The previous prime is 19292034803. The next prime is 19292034851. The reversal of 19292034840 is 4843029291.

It is a junction number, because it is equal to n+sod(n) for n = 19292034792 and 19292034801.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1539721 + ... + 1552199.

It is an arithmetic number, because the mean of its divisors is an integer number (487468800).

Almost surely, 2^19292034840 is an apocalyptic number.

19292034840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19292034840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31198003200).

19292034840 is an abundant number, since it is smaller than the sum of its proper divisors (43103971560).

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

19292034840 is a wasteful number, since it uses less digits than its factorization.

19292034840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13497 (or 13493 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 42.

The spelling of 19292034840 in words is "nineteen billion, two hundred ninety-two million, thirty-four thousand, eight hundred forty".