30840629 has 8 divisors (see below), whose sum is σ = 33511680. Its totient is φ = 28274400.

The previous prime is 30840619. The next prime is 30840661. The reversal of 30840629 is 92604803.

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 30840629 - 2⁸ = 30840373 is a prime.

It is a super-2 number, since 2×30840629² = 1902288794231282, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30840595 and 30840604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30840619) 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, 25592 + ... + 26769.

It is an arithmetic number, because the mean of its divisors is an integer number (4188960).

Almost surely, 2^30840629 is an apocalyptic number.

It is an amenable number.

30840629 is a deficient number, since it is larger than the sum of its proper divisors (2671051).

30840629 is a wasteful number, since it uses less digits than its factorization.

30840629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52411.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 30840629 is about 5553.4339826813. The cubic root of 30840629 is about 313.5988121495.

The spelling of 30840629 in words is "thirty million, eight hundred forty thousand, six hundred twenty-nine".