1019171434 has 16 divisors (see below), whose sum is σ = 1551388608. Its totient is φ = 502088832.

The previous prime is 1019171431. The next prime is 1019171449. The reversal of 1019171434 is 4341719101.

It is a junction number, because it is equal to n+sod(n) for n = 1019171396 and 1019171405.

It is not an unprimeable number, because it can be changed into a prime (1019171431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32467 + ... + 55609.

It is an arithmetic number, because the mean of its divisors is an integer number (96961788).

Almost surely, 2^1019171434 is an apocalyptic number.

1019171434 is a deficient number, since it is larger than the sum of its proper divisors (532217174).

1019171434 is a wasteful number, since it uses less digits than its factorization.

1019171434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23469.

The product of its (nonzero) digits is 3024, while the sum is 31.

The square root of 1019171434 is about 31924.4645060806. The cubic root of 1019171434 is about 1006.3500692682.

The spelling of 1019171434 in words is "one billion, nineteen million, one hundred seventy-one thousand, four hundred thirty-four".