305051242 has 4 divisors (see below), whose sum is σ = 457576866. Its totient is φ = 152525620.

The previous prime is 305051239. The next prime is 305051267. The reversal of 305051242 is 242150503.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 303491241 + 1560001 = 17421^2 + 1249^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76262809 + ... + 76262812.

Almost surely, 2^305051242 is an apocalyptic number.

305051242 is a deficient number, since it is larger than the sum of its proper divisors (152525624).

305051242 is a wasteful number, since it uses less digits than its factorization.

305051242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152525623.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 305051242 is about 17465.7161891518. The cubic root of 305051242 is about 673.1692444537.

The spelling of 305051242 in words is "three hundred five million, fifty-one thousand, two hundred forty-two".