69042042 has 12 divisors (see below), whose sum is σ = 149591130. Its totient is φ = 23014008.

The previous prime is 69042031. The next prime is 69042059. The reversal of 69042042 is 24024096.

It can be written as a sum of positive squares in only one way, i.e., 61638201 + 7403841 = 7851^2 + 2721^2 .

It is a junction number, because it is equal to n+sod(n) for n = 69041997 and 69042015.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1917817 + ... + 1917852.

Almost surely, 2^69042042 is an apocalyptic number.

69042042 is an abundant number, since it is smaller than the sum of its proper divisors (80549088).

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

69042042 is a wasteful number, since it uses less digits than its factorization.

69042042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3835677 (or 3835674 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 69042042 is about 8309.1541085721. The cubic root of 69042042 is about 410.2398794554.

The spelling of 69042042 in words is "sixty-nine million, forty-two thousand, forty-two".