30842073 has 32 divisors (see below), whose sum is σ = 48960000. Its totient is φ = 19130256.

The previous prime is 30842069. The next prime is 30842083. The reversal of 30842073 is 37024803.

It is not a de Polignac number, because 30842073 - 2² = 30842069 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (30842003) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29758 + ... + 30776.

It is an arithmetic number, because the mean of its divisors is an integer number (1530000).

Almost surely, 2^30842073 is an apocalyptic number.

It is an amenable number.

30842073 is a deficient number, since it is larger than the sum of its proper divisors (18117927).

30842073 is a wasteful number, since it uses less digits than its factorization.

30842073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1106 (or 1100 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 30842073 is about 5553.5639908081. The cubic root of 30842073 is about 313.6037064468.

Adding to 30842073 its reverse (37024803), we get a palindrome (67866876).

The spelling of 30842073 in words is "thirty million, eight hundred forty-two thousand, seventy-three".