1906732872 has 160 divisors (see below), whose sum is σ = 6014764800. Its totient is φ = 559094400.

The previous prime is 1906732853. The next prime is 1906732889. The reversal of 1906732872 is 2782376091.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 216654 + ... + 225282.

It is an arithmetic number, because the mean of its divisors is an integer number (37592280).

Almost surely, 2^1906732872 is an apocalyptic number.

1906732872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1906732872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3007382400).

1906732872 is an abundant number, since it is smaller than the sum of its proper divisors (4108031928).

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

1906732872 is a wasteful number, since it uses less digits than its factorization.

1906732872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8689 (or 8676 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 45.

The square root of 1906732872 is about 43666.1524753441. The cubic root of 1906732872 is about 1240.0236017013.

The spelling of 1906732872 in words is "one billion, nine hundred six million, seven hundred thirty-two thousand, eight hundred seventy-two".