305143342 has 16 divisors (see below), whose sum is σ = 523539072. Its totient is φ = 130666680.

The previous prime is 305143337. The next prime is 305143373. The reversal of 305143342 is 243341503.

It is a super-2 number, since 2×305143342² = 186224918333857928, which contains 22 as substring.

It is a congruent number.

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, 9633 + ... + 26515.

It is an arithmetic number, because the mean of its divisors is an integer number (32721192).

Almost surely, 2^305143342 is an apocalyptic number.

305143342 is a deficient number, since it is larger than the sum of its proper divisors (218395730).

305143342 is a wasteful number, since it uses less digits than its factorization.

305143342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18183.

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 305143342 is about 17468.3525840304. The cubic root of 305143342 is about 673.2369846019.

Adding to 305143342 its reverse (243341503), we get a palindrome (548484845).

It can be divided in two parts, 30514 and 3342, that added together give a square (33856 = 184²).

The spelling of 305143342 in words is "three hundred five million, one hundred forty-three thousand, three hundred forty-two".