19029034440 has 96 divisors (see below), whose sum is σ = 66601636920. Its totient is φ = 4684068864.

The previous prime is 19029034417. The next prime is 19029034457. The reversal of 19029034440 is 4443092091.

19029034440 is a `hidden beast` number, since 190 + 2 + 90 + 344 + 40 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 15835202244 + 3193832196 = 125838^2 + 56514^2 .

It is a super-2 number, since 2×19029034440² (a number of 21 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

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 = 19029034395 and 19029034404.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2028337 + ... + 2037696.

Almost surely, 2^19029034440 is an apocalyptic number.

19029034440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19029034440 is an abundant number, since it is smaller than the sum of its proper divisors (47572602480).

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

19029034440 is a wasteful number, since it uses less digits than its factorization.

19029034440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4066063 (or 4066056 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The spelling of 19029034440 in words is "nineteen billion, twenty-nine million, thirty-four thousand, four hundred forty".