1969545272 has 16 divisors (see below), whose sum is σ = 3708750240. Its totient is φ = 980545216.

The previous prime is 1969545209. The next prime is 1969545317. The reversal of 1969545272 is 2725459691.

It is a self number, because there is not a number n which added to its sum of digits gives 1969545272.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 526448 + ... + 530175.

It is an arithmetic number, because the mean of its divisors is an integer number (231796890).

Almost surely, 2^1969545272 is an apocalyptic number.

It is an amenable number.

1969545272 is a deficient number, since it is larger than the sum of its proper divisors (1739204968).

1969545272 is a wasteful number, since it uses less digits than its factorization.

1969545272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1056862 (or 1056858 counting only the distinct ones).

The product of its digits is 1360800, while the sum is 50.

The square root of 1969545272 is about 44379.5591686082. The cubic root of 1969545272 is about 1253.4932201965.

The spelling of 1969545272 in words is "one billion, nine hundred sixty-nine million, five hundred forty-five thousand, two hundred seventy-two".