1019934872 has 64 divisors (see below), whose sum is σ = 2185920000. Its totient is φ = 441866880.

The previous prime is 1019934871. The next prime is 1019934889. The reversal of 1019934872 is 2784399101.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1019934871) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 199079 + ... + 204137.

It is an arithmetic number, because the mean of its divisors is an integer number (34155000).

Almost surely, 2^1019934872 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1019934872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1092960000).

1019934872 is an abundant number, since it is smaller than the sum of its proper divisors (1165985128).

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

1019934872 is a wasteful number, since it uses less digits than its factorization.

1019934872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5184 (or 5180 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 44.

The square root of 1019934872 is about 31936.4192106755. The cubic root of 1019934872 is about 1006.6012844885.

The spelling of 1019934872 in words is "one billion, nineteen million, nine hundred thirty-four thousand, eight hundred seventy-two".