343378542 has 32 divisors (see below), whose sum is σ = 742573440. Its totient is φ = 105228000.

The previous prime is 343378499. The next prime is 343378549. The reversal of 343378542 is 245873343.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 343378542.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (343378549) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10809 + ... + 28347.

It is an arithmetic number, because the mean of its divisors is an integer number (23205420).

Almost surely, 2^343378542 is an apocalyptic number.

343378542 is an abundant number, since it is smaller than the sum of its proper divisors (399194898).

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

343378542 is a wasteful number, since it uses less digits than its factorization.

343378542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17808.

The product of its digits is 241920, while the sum is 39.

The square root of 343378542 is about 18530.4760327413. The cubic root of 343378542 is about 700.2574168909.

It can be divided in two parts, 343 and 378542, that added together give a triangular number (378885 = T₈₇₀).

The spelling of 343378542 in words is "three hundred forty-three million, three hundred seventy-eight thousand, five hundred forty-two".