1947338572 has 12 divisors (see below), whose sum is σ = 3408851376. Its totient is φ = 973381040.

The previous prime is 1947338567. The next prime is 1947338573. The reversal of 1947338572 is 2758337491.

It is not an unprimeable number, because it can be changed into a prime (1947338573) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56488 + ... + 84175.

It is an arithmetic number, because the mean of its divisors is an integer number (284070948).

Almost surely, 2^1947338572 is an apocalyptic number.

It is an amenable number.

1947338572 is a deficient number, since it is larger than the sum of its proper divisors (1461512804).

1947338572 is a wasteful number, since it uses less digits than its factorization.

1947338572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144128 (or 144126 counting only the distinct ones).

The product of its digits is 1270080, while the sum is 49.

The square root of 1947338572 is about 44128.6593043568. The cubic root of 1947338572 is about 1248.7643409465.

The spelling of 1947338572 in words is "one billion, nine hundred forty-seven million, three hundred thirty-eight thousand, five hundred seventy-two".