345154220 has 24 divisors (see below), whose sum is σ = 734756064. Its totient is φ = 136169856.

The previous prime is 345154219. The next prime is 345154231. The reversal of 345154220 is 22451543.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 345154220.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116744 + ... + 119663.

It is an arithmetic number, because the mean of its divisors is an integer number (30614836).

Almost surely, 2^345154220 is an apocalyptic number.

It is an amenable number.

345154220 is an abundant number, since it is smaller than the sum of its proper divisors (389601844).

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

345154220 is a wasteful number, since it uses less digits than its factorization.

345154220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236489 (or 236487 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 345154220 is about 18578.3266200161. The cubic root of 345154220 is about 701.4623984985.

The spelling of 345154220 in words is "three hundred forty-five million, one hundred fifty-four thousand, two hundred twenty".