1042661039 has 16 divisors (see below), whose sum is σ = 1227187200. Its totient is φ = 867413664.

The previous prime is 1042661029. The next prime is 1042661071. The reversal of 1042661039 is 9301662401.

It is a cyclic number.

It is not a de Polignac number, because 1042661039 - 2⁸ = 1042660783 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1042660996 and 1042661014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1042661029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16649 + ... + 48605.

It is an arithmetic number, because the mean of its divisors is an integer number (76699200).

Almost surely, 2^1042661039 is an apocalyptic number.

1042661039 is a deficient number, since it is larger than the sum of its proper divisors (184526161).

1042661039 is an equidigital number, since it uses as much as digits as its factorization.

1042661039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32102.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 1042661039 is about 32290.2622937628. The cubic root of 1042661039 is about 1014.0227885929.

The spelling of 1042661039 in words is "one billion, forty-two million, six hundred sixty-one thousand, thirty-nine".