30499842 has 8 divisors (see below), whose sum is σ = 60999696. Its totient is φ = 10166612.

The previous prime is 30499841. The next prime is 30499849. The reversal of 30499842 is 24899403.

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

30499842 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 30499842.

It is not an unprimeable number, because it can be changed into a prime (30499841) 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, 2541648 + ... + 2541659.

It is an arithmetic number, because the mean of its divisors is an integer number (7624962).

Almost surely, 2^30499842 is an apocalyptic number.

30499842 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30499842 is a wasteful number, since it uses less digits than its factorization.

30499842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5083312.

The product of its (nonzero) digits is 62208, while the sum is 39.

The square root of 30499842 is about 5522.6662039272. Note that the first 3 decimals coincide. The cubic root of 30499842 is about 312.4394489615.

The spelling of 30499842 in words is "thirty million, four hundred ninety-nine thousand, eight hundred forty-two".