305042829 has 32 divisors (see below), whose sum is σ = 512811264. Its totient is φ = 156971520.

The previous prime is 305042807. The next prime is 305042833. The reversal of 305042829 is 928240503.

It is a happy number.

It is not a de Polignac number, because 305042829 - 2⁵ = 305042797 is a prime.

It is a super-2 number, since 2×305042829² = 186102255048646482, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 305042829.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (305042839) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2434 + ... + 24819.

It is an arithmetic number, because the mean of its divisors is an integer number (16025352).

Almost surely, 2^305042829 is an apocalyptic number.

305042829 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

It is an amenable number.

305042829 is a deficient number, since it is larger than the sum of its proper divisors (207768435).

305042829 is a wasteful number, since it uses less digits than its factorization.

305042829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27317.

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 305042829 is about 17465.4753442327. The cubic root of 305042829 is about 673.1630559580.

It can be divided in two parts, 30504 and 2829, that added together give a palindrome (33333).

The spelling of 305042829 in words is "three hundred five million, forty-two thousand, eight hundred twenty-nine".