345397500 has 480 divisors, whose sum is σ = 1385556480. Its totient is φ = 72576000.

The previous prime is 345397469. The next prime is 345397513. The reversal of 345397500 is 5793543.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 8032479 + ... + 8032521.

It is an arithmetic number, because the mean of its divisors is an integer number (2886576).

Almost surely, 2^345397500 is an apocalyptic number.

345397500 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 345397500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (692778240).

345397500 is an abundant number, since it is smaller than the sum of its proper divisors (1040158980).

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

345397500 is a wasteful number, since it uses less digits than its factorization.

345397500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100 (or 77 counting only the distinct ones).

The product of its (nonzero) digits is 56700, while the sum is 36.

The square root of 345397500 is about 18584.8728809212. The cubic root of 345397500 is about 701.6271670607.

The spelling of 345397500 in words is "three hundred forty-five million, three hundred ninety-seven thousand, five hundred".