305729494 has 32 divisors (see below), whose sum is σ = 554860800. Its totient is φ = 123418080.

The previous prime is 305729491. The next prime is 305729561. The reversal of 305729494 is 494927503.

It is a self number, because there is not a number n which added to its sum of digits gives 305729494.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (305729491) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44404 + ... + 50824.

It is an arithmetic number, because the mean of its divisors is an integer number (17339400).

Almost surely, 2^305729494 is an apocalyptic number.

305729494 is a deficient number, since it is larger than the sum of its proper divisors (249131306).

305729494 is a wasteful number, since it uses less digits than its factorization.

305729494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6628.

The product of its (nonzero) digits is 272160, while the sum is 43.

The square root of 305729494 is about 17485.1220756390. The cubic root of 305729494 is about 673.6677841032.

The spelling of 305729494 in words is "three hundred five million, seven hundred twenty-nine thousand, four hundred ninety-four".