1042655439 has 16 divisors (see below), whose sum is σ = 1597132800. Its totient is φ = 592681440.

The previous prime is 1042655431. The next prime is 1042655447. The reversal of 1042655439 is 9345562401.

It is an interprime number because it is at equal distance from previous prime (1042655431) and next prime (1042655447).

It is not a de Polignac number, because 1042655439 - 2³ = 1042655431 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1042655397 and 1042655406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1042655431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 125964 + ... + 133985.

It is an arithmetic number, because the mean of its divisors is an integer number (99820800).

Almost surely, 2^1042655439 is an apocalyptic number.

1042655439 is a deficient number, since it is larger than the sum of its proper divisors (554477361).

1042655439 is a wasteful number, since it uses less digits than its factorization.

1042655439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260150.

The product of its (nonzero) digits is 129600, while the sum is 39.

The square root of 1042655439 is about 32290.1755801978. The cubic root of 1042655439 is about 1014.0209731938.

The spelling of 1042655439 in words is "one billion, forty-two million, six hundred fifty-five thousand, four hundred thirty-nine".