30424440 has 32 divisors (see below), whose sum is σ = 91273680. Its totient is φ = 8113152.

The previous prime is 30424411. The next prime is 30424477. The reversal of 30424440 is 4442403.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 126649 + ... + 126888.

Almost surely, 2^30424440 is an apocalyptic number.

30424440 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30424440 is an abundant number, since it is smaller than the sum of its proper divisors (60849240).

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

30424440 is a wasteful number, since it uses less digits than its factorization.

30424440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253551 (or 253547 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 21.

The square root of 30424440 is about 5515.8353855060. The cubic root of 30424440 is about 312.1817645672.

Adding to 30424440 its reverse (4442403), we get a palindrome (34866843).

The spelling of 30424440 in words is "thirty million, four hundred twenty-four thousand, four hundred forty".