345420530 has 64 divisors (see below), whose sum is σ = 785998080. Its totient is φ = 106354944.

The previous prime is 345420529. The next prime is 345420539. The reversal of 345420530 is 35024543.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a self number, because there is not a number n which added to its sum of digits gives 345420530.

It is not an unprimeable number, because it can be changed into a prime (345420539) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28541 + ... + 38799.

It is an arithmetic number, because the mean of its divisors is an integer number (12281220).

Almost surely, 2^345420530 is an apocalyptic number.

345420530 is an abundant number, since it is smaller than the sum of its proper divisors (440577550).

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

345420530 is a wasteful number, since it uses less digits than its factorization.

345420530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10323.

The product of its (nonzero) digits is 7200, while the sum is 26.

The square root of 345420530 is about 18585.4924605188. The cubic root of 345420530 is about 701.6427607989.

The spelling of 345420530 in words is "three hundred forty-five million, four hundred twenty thousand, five hundred thirty".