345642750 has 96 divisors (see below), whose sum is σ = 941803200. Its totient is φ = 91464000.

The previous prime is 345642727. The next prime is 345642769. The reversal of 345642750 is 57246543.

345642750 is a `hidden beast` number, since 3 + 4 + 5 + 642 + 7 + 5 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 334735 + ... + 335765.

It is an arithmetic number, because the mean of its divisors is an integer number (9810450).

Almost surely, 2^345642750 is an apocalyptic number.

345642750 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 345642750, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (470901600).

345642750 is an abundant number, since it is smaller than the sum of its proper divisors (596160450).

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

345642750 is a wasteful number, since it uses less digits than its factorization.

345642750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1203 (or 1190 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 36.

The square root of 345642750 is about 18591.4698181720. The cubic root of 345642750 is about 701.7931915703.

The spelling of 345642750 in words is "three hundred forty-five million, six hundred forty-two thousand, seven hundred fifty".