345857142 has 32 divisors (see below), whose sum is σ = 715207680. Its totient is φ = 111382560.

The previous prime is 345857131. The next prime is 345857201. The reversal of 345857142 is 241758543.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 345857142.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 153073 + ... + 155315.

It is an arithmetic number, because the mean of its divisors is an integer number (22350240).

Almost surely, 2^345857142 is an apocalyptic number.

345857142 is an abundant number, since it is smaller than the sum of its proper divisors (369350538).

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

345857142 is a wasteful number, since it uses less digits than its factorization.

345857142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3108.

The product of its digits is 134400, while the sum is 39.

The square root of 345857142 is about 18597.2347944526. The cubic root of 345857142 is about 701.9382621171.

The spelling of 345857142 in words is "three hundred forty-five million, eight hundred fifty-seven thousand, one hundred forty-two".