30540423 has 8 divisors (see below), whose sum is σ = 41031936. Its totient is φ = 20204600.

The previous prime is 30540421. The next prime is 30540463. The reversal of 30540423 is 32404503.

It is a happy number.

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 30540423 - 2¹ = 30540421 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30540423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30540421) 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, 38463 + ... + 39248.

It is an arithmetic number, because the mean of its divisors is an integer number (5128992).

Almost surely, 2^30540423 is an apocalyptic number.

30540423 is a deficient number, since it is larger than the sum of its proper divisors (10491513).

30540423 is a wasteful number, since it uses less digits than its factorization.

30540423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77845.

The product of its (nonzero) digits is 1440, while the sum is 21.

The square root of 30540423 is about 5526.3390232594. The cubic root of 30540423 is about 312.5779577240.

Adding to 30540423 its reverse (32404503), we get a palindrome (62944926).

The spelling of 30540423 in words is "thirty million, five hundred forty thousand, four hundred twenty-three".