69981342 has 16 divisors (see below), whose sum is σ = 143376912. Its totient is φ = 22758080.

The previous prime is 69981271. The next prime is 69981343. The reversal of 69981342 is 24318996.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 69981294 and 69981303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69981343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 141993 + ... + 142484.

It is an arithmetic number, because the mean of its divisors is an integer number (8961057).

Almost surely, 2^69981342 is an apocalyptic number.

69981342 is an abundant number, since it is smaller than the sum of its proper divisors (73395570).

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

69981342 is a wasteful number, since it uses less digits than its factorization.

69981342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284523.

The product of its digits is 93312, while the sum is 42.

The square root of 69981342 is about 8365.4851622605. The cubic root of 69981342 is about 412.0919100884.

The spelling of 69981342 in words is "sixty-nine million, nine hundred eighty-one thousand, three hundred forty-two".