345433280 has 56 divisors (see below), whose sum is σ = 824167008. Its totient is φ = 137904128.

The previous prime is 345433271. The next prime is 345433289. The reversal of 345433280 is 82334543.

It is an interprime number because it is at equal distance from previous prime (345433271) and next prime (345433289).

It is a Harshad number since it is a multiple of its sum of digits (32).

It is not an unprimeable number, because it can be changed into a prime (345433289) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 283232 + ... + 284448.

It is an arithmetic number, because the mean of its divisors is an integer number (14717268).

Almost surely, 2^345433280 is an apocalyptic number.

It is an amenable number.

345433280 is an abundant number, since it is smaller than the sum of its proper divisors (478733728).

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

345433280 is a wasteful number, since it uses less digits than its factorization.

345433280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2121 (or 2111 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 32.

The square root of 345433280 is about 18585.8354668280. The cubic root of 345433280 is about 701.6513935951.

The spelling of 345433280 in words is "three hundred forty-five million, four hundred thirty-three thousand, two hundred eighty".