1039842438 has 16 divisors (see below), whose sum is σ = 2080001280. Its totient is φ = 346561416.

The previous prime is 1039842437. The next prime is 1039842439. The reversal of 1039842438 is 8342489301.

It is an interprime number because it is at equal distance from previous prime (1039842437) and next prime (1039842439).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1039842438.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1039842437) 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 7 ways as a sum of consecutive naturals, for example, 67983 + ... + 81861.

It is an arithmetic number, because the mean of its divisors is an integer number (130000080).

Almost surely, 2^1039842438 is an apocalyptic number.

1039842438 is an abundant number, since it is smaller than the sum of its proper divisors (1040158842).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1039842438 is a wasteful number, since it uses less digits than its factorization.

1039842438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26371.

The product of its (nonzero) digits is 165888, while the sum is 42.

The square root of 1039842438 is about 32246.5880055549. The cubic root of 1039842438 is about 1013.1082360367.

The spelling of 1039842438 in words is "one billion, thirty-nine million, eight hundred forty-two thousand, four hundred thirty-eight".