19002945240 has 48 divisors (see below), whose sum is σ = 61759573200. Its totient is φ = 5067451968.

The previous prime is 19002945187. The next prime is 19002945289. The reversal of 19002945240 is 4254920091.

It is a super-2 number, since 2×19002945240² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 19002945195 and 19002945204.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26392620 + ... + 26393339.

It is an arithmetic number, because the mean of its divisors is an integer number (1286657775).

Almost surely, 2^19002945240 is an apocalyptic number.

19002945240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19002945240 is an abundant number, since it is smaller than the sum of its proper divisors (42756627960).

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

19002945240 is a wasteful number, since it uses less digits than its factorization.

19002945240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52785976 (or 52785969 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The spelling of 19002945240 in words is "nineteen billion, two million, nine hundred forty-five thousand, two hundred forty".