346426840 has 16 divisors (see below), whose sum is σ = 779460480. Its totient is φ = 138570720.

The previous prime is 346426813. The next prime is 346426853. The reversal of 346426840 is 48624643.

It is a self number, because there is not a number n which added to its sum of digits gives 346426840.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4330296 + ... + 4330375.

It is an arithmetic number, because the mean of its divisors is an integer number (48716280).

Almost surely, 2^346426840 is an apocalyptic number.

It is an amenable number.

346426840 is an abundant number, since it is smaller than the sum of its proper divisors (433033640).

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

346426840 is a wasteful number, since it uses less digits than its factorization.

346426840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8660682 (or 8660678 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 37.

The square root of 346426840 is about 18612.5452316442. The cubic root of 346426840 is about 702.3234630258.

The spelling of 346426840 in words is "three hundred forty-six million, four hundred twenty-six thousand, eight hundred forty".