30404250 has 48 divisors (see below), whose sum is σ = 82219176. Its totient is φ = 8107200.

The previous prime is 30404239. The next prime is 30404251. The reversal of 30404250 is 5240403.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 9308601 + 21095649 = 3051^2 + 4593^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (30404251) 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 23 ways as a sum of consecutive naturals, for example, 4507 + ... + 9006.

Almost surely, 2^30404250 is an apocalyptic number.

30404250 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30404250 is an abundant number, since it is smaller than the sum of its proper divisors (51814926).

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

30404250 is a wasteful number, since it uses less digits than its factorization.

30404250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13536 (or 13523 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 30404250 is about 5514.0048966246. The cubic root of 30404250 is about 312.1126935114.

Adding to 30404250 its reverse (5240403), we get a palindrome (35644653).

The spelling of 30404250 in words is "thirty million, four hundred four thousand, two hundred fifty".