1029872 has 20 divisors (see below), whose sum is σ = 2011776. Its totient is φ = 510720.

The previous prime is 1029859. The next prime is 1029881. The reversal of 1029872 is 2789201.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2888 + ... + 3224.

2^1029872 is an apocalyptic number.

It is an amenable number.

1029872 is a deficient number, since it is larger than the sum of its proper divisors (981904).

1029872 is a wasteful number, since it uses less digits than its factorization.

1029872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 536 (or 530 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 1029872 is about 1014.8260934761. The cubic root of 1029872 is about 100.9859798204.

The spelling of 1029872 in words is "one million, twenty-nine thousand, eight hundred seventy-two".