305425242 has 24 divisors (see below), whose sum is σ = 686265216. Its totient is φ = 101808252.

The previous prime is 305425229. The next prime is 305425261. The reversal of 305425242 is 242524503.

It is a happy number.

305425242 is a `hidden beast` number, since 30 + 542 + 52 + 42 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 313738 + ... + 314709.

It is an arithmetic number, because the mean of its divisors is an integer number (28594384).

Almost surely, 2^305425242 is an apocalyptic number.

305425242 is an abundant number, since it is smaller than the sum of its proper divisors (380839974).

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

305425242 is an equidigital number, since it uses as much as digits as its factorization.

305425242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 628464 (or 628452 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 27.

The square root of 305425242 is about 17476.4195989911. The cubic root of 305425242 is about 673.4442392117. Note that the first 3 decimals are identical.

Adding to 305425242 its reverse (242524503), we get a palindrome (547949745).

The spelling of 305425242 in words is "three hundred five million, four hundred twenty-five thousand, two hundred forty-two".