30840429 has 8 divisors (see below), whose sum is σ = 41146560. Its totient is φ = 20547296.

The previous prime is 30840389. The next prime is 30840449. The reversal of 30840429 is 92404803.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30840429 - 2¹⁵ = 30807661 is a prime.

It is a super-2 number, since 2×30840429² = 1902264121808082, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30840396 and 30840405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30840449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6304 + ... + 10070.

It is an arithmetic number, because the mean of its divisors is an integer number (5143320).

Almost surely, 2^30840429 is an apocalyptic number.

It is an amenable number.

30840429 is a deficient number, since it is larger than the sum of its proper divisors (10306131).

30840429 is a wasteful number, since it uses less digits than its factorization.

30840429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6499.

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 30840429 is about 5553.4159757756. The cubic root of 30840429 is about 313.5981342570.

The spelling of 30840429 in words is "thirty million, eight hundred forty thousand, four hundred twenty-nine".