1032239021 has 12 divisors (see below), whose sum is σ = 1173738300. Its totient is φ = 906037440.

The previous prime is 1032239017. The next prime is 1032239029. The reversal of 1032239021 is 1209322301.

It can be written as a sum of positive squares in 2 ways, for example, as 167055625 + 865183396 = 12925^2 + 29414^2 .

It is not a de Polignac number, because 1032239021 - 2² = 1032239017 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1032239029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 143576 + ... + 150593.

It is an arithmetic number, because the mean of its divisors is an integer number (97811525).

Almost surely, 2^1032239021 is an apocalyptic number.

1032239021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1032239021 is a deficient number, since it is larger than the sum of its proper divisors (141499279).

1032239021 is a wasteful number, since it uses less digits than its factorization.

1032239021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294220 (or 294209 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 1032239021 is about 32128.4767924033. The cubic root of 1032239021 is about 1010.6328814540.

The spelling of 1032239021 in words is "one billion, thirty-two million, two hundred thirty-nine thousand, twenty-one".