343770042 has 64 divisors (see below), whose sum is σ = 862138368. Its totient is φ = 88776000.

The previous prime is 343770041. The next prime is 343770047. The reversal of 343770042 is 240077343.

It is a junction number, because it is equal to n+sod(n) for n = 343769991 and 343770009.

It is not an unprimeable number, because it can be changed into a prime (343770041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 81567 + ... + 85677.

It is an arithmetic number, because the mean of its divisors is an integer number (13470912).

Almost surely, 2^343770042 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 343770042, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (431069184).

343770042 is an abundant number, since it is smaller than the sum of its proper divisors (518368326).

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

343770042 is a wasteful number, since it uses less digits than its factorization.

343770042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4315.

The product of its (nonzero) digits is 14112, while the sum is 30.

The square root of 343770042 is about 18541.0367024069. The cubic root of 343770042 is about 700.5234465744.

The spelling of 343770042 in words is "three hundred forty-three million, seven hundred seventy thousand, forty-two".