1072869329 has 12 divisors (see below), whose sum is σ = 1252797504. Its totient is φ = 900023304.

The previous prime is 1072869319. The next prime is 1072869367. The reversal of 1072869329 is 9239682701.

It is a happy number.

It is not a de Polignac number, because 1072869329 - 2⁸ = 1072869073 is a prime.

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is not an unprimeable number, because it can be changed into a prime (1072869319) 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, 19229 + ... + 50154.

It is an arithmetic number, because the mean of its divisors is an integer number (104399792).

Almost surely, 2^1072869329 is an apocalyptic number.

It is an amenable number.

1072869329 is a deficient number, since it is larger than the sum of its proper divisors (179928175).

1072869329 is an frugal number, since it uses more digits than its factorization.

1072869329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69484 (or 69437 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 47.

The square root of 1072869329 is about 32754.6840772431. The cubic root of 1072869329 is about 1023.7225661503.

The spelling of 1072869329 in words is "one billion, seventy-two million, eight hundred sixty-nine thousand, three hundred twenty-nine".