42988329 has 6 divisors (see below), whose sum is σ = 62094266. Its totient is φ = 28658880.

The previous prime is 42988307. The next prime is 42988331. The reversal of 42988329 is 92388924.

It can be written as a sum of positive squares in only one way, i.e., 33698025 + 9290304 = 5805^2 + 3048^2 .

It is not a de Polignac number, because 42988329 - 2⁸ = 42988073 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42988399) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2388232 + ... + 2388249.

Almost surely, 2^42988329 is an apocalyptic number.

It is an amenable number.

42988329 is a deficient number, since it is larger than the sum of its proper divisors (19105937).

42988329 is a wasteful number, since it uses less digits than its factorization.

42988329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4776487 (or 4776484 counting only the distinct ones).

The product of its digits is 248832, while the sum is 45.

The square root of 42988329 is about 6556.5485585024. The cubic root of 42988329 is about 350.3081069235.

The spelling of 42988329 in words is "forty-two million, nine hundred eighty-eight thousand, three hundred twenty-nine".