19225022040 has 192 divisors, whose sum is σ = 71597260800. Its totient is φ = 4382597376.

The previous prime is 19225021979. The next prime is 19225022051. The reversal of 19225022040 is 4022052291.

It is a happy number.

19225022040 is a `hidden beast` number, since 192 + 250 + 220 + 4 + 0 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 19225021995 and 19225022013.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 955201 + ... + 975119.

It is an arithmetic number, because the mean of its divisors is an integer number (372902400).

Almost surely, 2^19225022040 is an apocalyptic number.

19225022040 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 19225022040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35798630400).

19225022040 is an abundant number, since it is smaller than the sum of its proper divisors (52372238760).

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

19225022040 is a wasteful number, since it uses less digits than its factorization.

19225022040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20326 (or 20319 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The spelling of 19225022040 in words is "nineteen billion, two hundred twenty-five million, twenty-two thousand, forty".