42069044 has 6 divisors (see below), whose sum is σ = 73620834. Its totient is φ = 21034520.

The previous prime is 42069043. The next prime is 42069061. The reversal of 42069044 is 44096024.

It can be written as a sum of positive squares in only one way, i.e., 31584400 + 10484644 = 5620^2 + 3238^2 .

It is a junction number, because it is equal to n+sod(n) for n = 42068998 and 42069016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42069043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5258627 + ... + 5258634.

It is an arithmetic number, because the mean of its divisors is an integer number (12270139).

Almost surely, 2^42069044 is an apocalyptic number.

It is an amenable number.

42069044 is a deficient number, since it is larger than the sum of its proper divisors (31551790).

42069044 is a wasteful number, since it uses less digits than its factorization.

42069044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10517265 (or 10517263 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 42069044 is about 6486.0653712401. The cubic root of 42069044 is about 347.7930354346.

The spelling of 42069044 in words is "forty-two million, sixty-nine thousand, forty-four".