305429420 has 24 divisors (see below), whose sum is σ = 669289824. Its totient is φ = 116859776.

The previous prime is 305429419. The next prime is 305429431. The reversal of 305429420 is 24924503.

305429420 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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, 331529 + ... + 332448.

It is an arithmetic number, because the mean of its divisors is an integer number (27887076).

Almost surely, 2^305429420 is an apocalyptic number.

It is an amenable number.

305429420 is an abundant number, since it is smaller than the sum of its proper divisors (363860404).

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

305429420 is a wasteful number, since it uses less digits than its factorization.

305429420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 664009 (or 664007 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 305429420 is about 17476.5391310751. The cubic root of 305429420 is about 673.4473099437.

The spelling of 305429420 in words is "three hundred five million, four hundred twenty-nine thousand, four hundred twenty".