30542406 has 8 divisors (see below), whose sum is σ = 61084824. Its totient is φ = 10180800.

The previous prime is 30542389. The next prime is 30542429. The reversal of 30542406 is 60424503.

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

30542406 is an admirable number.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2545195 + ... + 2545206.

It is an arithmetic number, because the mean of its divisors is an integer number (7635603).

Almost surely, 2^30542406 is an apocalyptic number.

30542406 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.

30542406 is a wasteful number, since it uses less digits than its factorization.

30542406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5090406.

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 30542406 is about 5526.5184338786. The cubic root of 30542406 is about 312.5847228418.

Adding to 30542406 its reverse (60424503), we get a palindrome (90966909).

It can be divided in two parts, 3054 and 2406, that added together give a triangular number (5460 = T₁₀₄).

The spelling of 30542406 in words is "thirty million, five hundred forty-two thousand, four hundred six".