1072871870 has 128 divisors (see below), whose sum is σ = 2441871360. Its totient is φ = 330946560.

The previous prime is 1072871857. The next prime is 1072871881. The reversal of 1072871870 is 781782701.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4684916 + ... + 4685144.

It is an arithmetic number, because the mean of its divisors is an integer number (19077120).

Almost surely, 2^1072871870 is an apocalyptic number.

1072871870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1072871870 is an abundant number, since it is smaller than the sum of its proper divisors (1368999490).

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

1072871870 is a wasteful number, since it uses less digits than its factorization.

1072871870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418.

The product of its (nonzero) digits is 43904, while the sum is 41.

The square root of 1072871870 is about 32754.7228655655. The cubic root of 1072871870 is about 1023.7233743497.

The spelling of 1072871870 in words is "one billion, seventy-two million, eight hundred seventy-one thousand, eight hundred seventy".