30957423 has 16 divisors (see below), whose sum is σ = 47744256. Its totient is φ = 17475840.

The previous prime is 30957401. The next prime is 30957457. The reversal of 30957423 is 32475903.

It is a happy number.

It is not a de Polignac number, because 30957423 - 2⁸ = 30957167 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30957473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7138 + ... + 10623.

It is an arithmetic number, because the mean of its divisors is an integer number (2984016).

Almost surely, 2^30957423 is an apocalyptic number.

30957423 is a deficient number, since it is larger than the sum of its proper divisors (16786833).

30957423 is a wasteful number, since it uses less digits than its factorization.

30957423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17854.

The product of its (nonzero) digits is 22680, while the sum is 33.

The square root of 30957423 is about 5563.9395215980. The cubic root of 30957423 is about 313.9941815358.

The spelling of 30957423 in words is "thirty million, nine hundred fifty-seven thousand, four hundred twenty-three".