869442146 has 8 divisors (see below), whose sum is σ = 1335972204. Its totient is φ = 424118080.

The previous prime is 869442103. The next prime is 869442149. The reversal of 869442146 is 641244968.

It can be written as a sum of positive squares in 2 ways, for example, as 663835225 + 205606921 = 25765^2 + 14339^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 869442097 and 869442106.

It is not an unprimeable number, because it can be changed into a prime (869442149) 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, 5301395 + ... + 5301558.

Almost surely, 2^869442146 is an apocalyptic number.

869442146 is a deficient number, since it is larger than the sum of its proper divisors (466530058).

869442146 is a wasteful number, since it uses less digits than its factorization.

869442146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10602996.

The product of its digits is 331776, while the sum is 44.

The square root of 869442146 is about 29486.3043801694. The cubic root of 869442146 is about 954.4361852042.

The spelling of 869442146 in words is "eight hundred sixty-nine million, four hundred forty-two thousand, one hundred forty-six".