30523404 has 12 divisors (see below), whose sum is σ = 71221304. Its totient is φ = 10174464.

The previous prime is 30523403. The next prime is 30523429. The reversal of 30523404 is 40432503.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30523403) 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, 1271797 + ... + 1271820.

Almost surely, 2^30523404 is an apocalyptic number.

It is an amenable number.

30523404 is an abundant number, since it is smaller than the sum of its proper divisors (40697900).

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

30523404 is a wasteful number, since it uses less digits than its factorization.

30523404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2543624 (or 2543622 counting only the distinct ones).

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

The square root of 30523404 is about 5524.7990008687. The cubic root of 30523404 is about 312.5198843881.

Adding to 30523404 its reverse (40432503), we get a palindrome (70955907).

Subtracting 30523404 from its reverse (40432503), we obtain a palindrome (9909099).

The spelling of 30523404 in words is "thirty million, five hundred twenty-three thousand, four hundred four".