42044434 has 16 divisors (see below), whose sum is σ = 68407416. Its totient is φ = 19302400.

The previous prime is 42044419. The next prime is 42044441. The reversal of 42044434 is 43444024.

It can be written as a sum of positive squares in 4 ways, for example, as 36638809 + 5405625 = 6053^2 + 2325^2 .

It is a junction number, because it is equal to n+sod(n) for n = 42044399 and 42044408.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13687 + ... + 16474.

Almost surely, 2^42044434 is an apocalyptic number.

42044434 is a deficient number, since it is larger than the sum of its proper divisors (26362982).

42044434 is a wasteful number, since it uses less digits than its factorization.

42044434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30221.

The product of its (nonzero) digits is 6144, while the sum is 25.

The square root of 42044434 is about 6484.1679497064. The cubic root of 42044434 is about 347.7252036408.

Adding to 42044434 its reverse (43444024), we get a palindrome (85488458).

The spelling of 42044434 in words is "forty-two million, forty-four thousand, four hundred thirty-four".