345178180 has 96 divisors (see below), whose sum is σ = 789368832. Its totient is φ = 126489600.

The previous prime is 345178177. The next prime is 345178193. The reversal of 345178180 is 81871543.

It is a super-2 number, since 2×345178180² = 238295951896224800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 940357 + ... + 940723.

It is an arithmetic number, because the mean of its divisors is an integer number (8222592).

Almost surely, 2^345178180 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 345178180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (394684416).

345178180 is an abundant number, since it is smaller than the sum of its proper divisors (444190652).

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

345178180 is a wasteful number, since it uses less digits than its factorization.

345178180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 485 (or 483 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 37.

The square root of 345178180 is about 18578.9714462346. The cubic root of 345178180 is about 701.4786295524.

The spelling of 345178180 in words is "three hundred forty-five million, one hundred seventy-eight thousand, one hundred eighty".