1069681972 has 6 divisors (see below), whose sum is σ = 1871943458. Its totient is φ = 534840984.

The previous prime is 1069681967. The next prime is 1069681993. The reversal of 1069681972 is 2791869601.

1069681972 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 1041740176 + 27941796 = 32276^2 + 5286^2 .

It is a super-2 number, since 2×1069681972² = 2288439042443617568, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 133710243 + ... + 133710250.

Almost surely, 2^1069681972 is an apocalyptic number.

It is an amenable number.

1069681972 is a deficient number, since it is larger than the sum of its proper divisors (802261486).

1069681972 is a wasteful number, since it uses less digits than its factorization.

1069681972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267420497 (or 267420495 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 49.

The square root of 1069681972 is about 32705.9929064996. The cubic root of 1069681972 is about 1022.7077777909.

The spelling of 1069681972 in words is "one billion, sixty-nine million, six hundred eighty-one thousand, nine hundred seventy-two".