30455404 has 72 divisors (see below), whose sum is σ = 67592448. Its totient is φ = 11737440.

The previous prime is 30455401. The next prime is 30455413. The reversal of 30455404 is 40455403.

It is not an unprimeable number, because it can be changed into a prime (30455401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 232419 + ... + 232549.

It is an arithmetic number, because the mean of its divisors is an integer number (938784).

Almost surely, 2^30455404 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30455404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33796224).

30455404 is an abundant number, since it is smaller than the sum of its proper divisors (37137044).

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

30455404 is a wasteful number, since it uses less digits than its factorization.

30455404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203 (or 182 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 30455404 is about 5518.6414994997. The cubic root of 30455404 is about 312.2876347025.

Subtracting 30455404 from its reverse (40455403), we obtain a palindrome (9999999).

It can be divided in two parts, 304 and 55404, that multiplied together give a square (16842816 = 4104²).

The spelling of 30455404 in words is "thirty million, four hundred fifty-five thousand, four hundred four".