345426140 has 24 divisors (see below), whose sum is σ = 729745632. Its totient is φ = 137341760.

The previous prime is 345426139. The next prime is 345426143. The reversal of 345426140 is 41624543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345426143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48371 + ... + 55050.

It is an arithmetic number, because the mean of its divisors is an integer number (30406068).

Almost surely, 2^345426140 is an apocalyptic number.

It is an amenable number.

345426140 is an abundant number, since it is smaller than the sum of its proper divisors (384319492).

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

345426140 is a wasteful number, since it uses less digits than its factorization.

345426140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103597 (or 103595 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 29.

The square root of 345426140 is about 18585.6433840747. The cubic root of 345426140 is about 701.6465592554.

The spelling of 345426140 in words is "three hundred forty-five million, four hundred twenty-six thousand, one hundred forty".