30840235 has 8 divisors (see below), whose sum is σ = 37038096. Its totient is φ = 24652320.

The previous prime is 30840233. The next prime is 30840239. The reversal of 30840235 is 53204803.

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

It is not a de Polignac number, because 30840235 - 2¹ = 30840233 is a prime.

It is a super-2 number, since 2×30840235² = 1902240189710450, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30840233) 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, 10920 + ... + 13450.

It is an arithmetic number, because the mean of its divisors is an integer number (4629762).

Almost surely, 2^30840235 is an apocalyptic number.

30840235 is a deficient number, since it is larger than the sum of its proper divisors (6197861).

30840235 is a wasteful number, since it uses less digits than its factorization.

30840235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4973.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 30840235 is about 5553.3985090213. The cubic root of 30840235 is about 313.5974766984.

The spelling of 30840235 in words is "thirty million, eight hundred forty thousand, two hundred thirty-five".