345047500 has 60 divisors (see below), whose sum is σ = 862386448. Its totient is φ = 118296000.

The previous prime is 345047489. The next prime is 345047503. The reversal of 345047500 is 5740543.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (345047503) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 7642 + ... + 27358.

Almost surely, 2^345047500 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 345047500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (431193224).

345047500 is an abundant number, since it is smaller than the sum of its proper divisors (517338948).

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

345047500 is a wasteful number, since it uses less digits than its factorization.

345047500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19748 (or 19731 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 28.

The square root of 345047500 is about 18575.4542340154. The cubic root of 345047500 is about 701.3900947962.

The spelling of 345047500 in words is "three hundred forty-five million, forty-seven thousand, five hundred".