342775818 has 72 divisors (see below), whose sum is σ = 932996064. Its totient is φ = 89028720.

The previous prime is 342775817. The next prime is 342775847. The reversal of 342775818 is 818577243.

It is a super-2 number, since 2×342775818² = 234990522811138248, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (342775813) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 4005 + ... + 26487.

Almost surely, 2^342775818 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 342775818, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (466498032).

342775818 is an abundant number, since it is smaller than the sum of its proper divisors (590220246).

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

342775818 is a wasteful number, since it uses less digits than its factorization.

342775818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22520 (or 22506 counting only the distinct ones).

The product of its digits is 376320, while the sum is 45.

The square root of 342775818 is about 18514.2058430817. The cubic root of 342775818 is about 699.8474620007.

The spelling of 342775818 in words is "three hundred forty-two million, seven hundred seventy-five thousand, eight hundred eighteen".