345751840 has 72 divisors (see below), whose sum is σ = 950221692. Its totient is φ = 118540800.

The previous prime is 345751789. The next prime is 345751849. The reversal of 345751840 is 48157543.

It can be written as a sum of positive squares in 2 ways, for example, as 312158224 + 33593616 = 17668^2 + 5796^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 345751840.

It is not an unprimeable number, because it can be changed into a prime (345751849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14211 + ... + 29890.

Almost surely, 2^345751840 is an apocalyptic number.

It is an amenable number.

345751840 is an abundant number, since it is smaller than the sum of its proper divisors (604469852).

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

345751840 is a wasteful number, since it uses less digits than its factorization.

345751840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44130 (or 44115 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 37.

The square root of 345751840 is about 18594.4034591056. The cubic root of 345751840 is about 701.8670159321.

The spelling of 345751840 in words is "three hundred forty-five million, seven hundred fifty-one thousand, eight hundred forty".