69918242 has 8 divisors (see below), whose sum is σ = 105120876. Its totient is φ = 34877952.

The previous prime is 69918241. The next prime is 69918259. The reversal of 69918242 is 24281996.

It can be written as a sum of positive squares in 2 ways, for example, as 68574961 + 1343281 = 8281^2 + 1159^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 69918242.

It is not an unprimeable number, because it can be changed into a prime (69918241) 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, 39503 + ... + 41234.

Almost surely, 2^69918242 is an apocalyptic number.

69918242 is a deficient number, since it is larger than the sum of its proper divisors (35202634).

69918242 is a wasteful number, since it uses less digits than its factorization.

69918242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81172.

The product of its digits is 62208, while the sum is 41.

The square root of 69918242 is about 8361.7128628051. The cubic root of 69918242 is about 411.9680160234.

The spelling of 69918242 in words is "sixty-nine million, nine hundred eighteen thousand, two hundred forty-two".