1947869132 has 36 divisors (see below), whose sum is σ = 3944051160. Its totient is φ = 838791360.

The previous prime is 1947869117. The next prime is 1947869137. The reversal of 1947869132 is 2319687491.

It is not an unprimeable number, because it can be changed into a prime (1947869137) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 96713 + ... + 115104.

Almost surely, 2^1947869132 is an apocalyptic number.

It is an amenable number.

1947869132 is an abundant number, since it is smaller than the sum of its proper divisors (1996182028).

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

1947869132 is a wasteful number, since it uses less digits than its factorization.

1947869132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211862 (or 211849 counting only the distinct ones).

The product of its digits is 653184, while the sum is 50.

The square root of 1947869132 is about 44134.6704077418. The cubic root of 1947869132 is about 1248.8777408891.

The spelling of 1947869132 in words is "one billion, nine hundred forty-seven million, eight hundred sixty-nine thousand, one hundred thirty-two".