305871742 has 16 divisors (see below), whose sum is σ = 500919552. Its totient is φ = 138920920.

The previous prime is 305871703. The next prime is 305871743. The reversal of 305871742 is 247178503.

305871742 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×305871742² = 187115045108229128, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (305871743) 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, 26523 + ... + 36265.

It is an arithmetic number, because the mean of its divisors is an integer number (31307472).

Almost surely, 2^305871742 is an apocalyptic number.

305871742 is a deficient number, since it is larger than the sum of its proper divisors (195047810).

305871742 is a wasteful number, since it uses less digits than its factorization.

305871742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11183.

The product of its (nonzero) digits is 47040, while the sum is 37.

The square root of 305871742 is about 17489.1892893867. The cubic root of 305871742 is about 673.7722479496.

The spelling of 305871742 in words is "three hundred five million, eight hundred seventy-one thousand, seven hundred forty-two".