30460729 has 6 divisors (see below), whose sum is σ = 32984286. Its totient is φ = 28117440.

The previous prime is 30460721. The next prime is 30460757. The reversal of 30460729 is 92706403.

It can be written as a sum of positive squares in 3 ways, for example, as 3055504 + 27405225 = 1748^2 + 5235^2 .

It is not a de Polignac number, because 30460729 - 2³ = 30460721 is a prime.

It is a super-2 number, since 2×30460729² = 1855712022422882, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30460729.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30460721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 89952 + ... + 90289.

It is an arithmetic number, because the mean of its divisors is an integer number (5497381).

Almost surely, 2^30460729 is an apocalyptic number.

It is an amenable number.

30460729 is a deficient number, since it is larger than the sum of its proper divisors (2523557).

30460729 is a wasteful number, since it uses less digits than its factorization.

30460729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180267 (or 180254 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 30460729 is about 5519.1239341040. The cubic root of 30460729 is about 312.3058343707.

The spelling of 30460729 in words is "thirty million, four hundred sixty thousand, seven hundred twenty-nine".