42867039 has 4 divisors (see below), whose sum is σ = 57156056. Its totient is φ = 28578024.

The previous prime is 42866977. The next prime is 42867043. The reversal of 42867039 is 93076824.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 42867039 - 2⁸ = 42866783 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42866988 and 42867006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42867049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7144504 + ... + 7144509.

It is an arithmetic number, because the mean of its divisors is an integer number (14289014).

Almost surely, 2^42867039 is an apocalyptic number.

42867039 is a deficient number, since it is larger than the sum of its proper divisors (14289017).

42867039 is a wasteful number, since it uses less digits than its factorization.

42867039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14289016.

The product of its (nonzero) digits is 72576, while the sum is 39.

The square root of 42867039 is about 6547.2924938481. The cubic root of 42867039 is about 349.9783360741.

It can be divided in two parts, 4286 and 7039, that added together give a triangular number (11325 = T₁₅₀).

The spelling of 42867039 in words is "forty-two million, eight hundred sixty-seven thousand, thirty-nine".