30540029 has 4 divisors (see below), whose sum is σ = 32889276. Its totient is φ = 28190784.

The previous prime is 30540017. The next prime is 30540079. The reversal of 30540029 is 92004503.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 20268004 + 10272025 = 4502^2 + 3205^2 .

It is a cyclic number.

It is not a de Polignac number, because 30540029 - 2¹² = 30535933 is a prime.

It is a super-3 number, since 3×30540029³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30539986 and 30540013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30540079) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1174604 + ... + 1174629.

It is an arithmetic number, because the mean of its divisors is an integer number (8222319).

Almost surely, 2^30540029 is an apocalyptic number.

It is an amenable number.

30540029 is a deficient number, since it is larger than the sum of its proper divisors (2349247).

30540029 is a wasteful number, since it uses less digits than its factorization.

30540029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2349246.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 30540029 is about 5526.3033756753. The cubic root of 30540029 is about 312.5766135356.

The spelling of 30540029 in words is "thirty million, five hundred forty thousand, twenty-nine".