30484440 has 96 divisors (see below), whose sum is σ = 113237280. Its totient is φ = 6967296.

The previous prime is 30484393. The next prime is 30484457. The reversal of 30484440 is 4448403.

It is a super-2 number, since 2×30484440² = 1858602164227200, which contains 22 as substring.

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 23 ways as a sum of consecutive naturals, for example, 3529 + ... + 8568.

It is an arithmetic number, because the mean of its divisors is an integer number (1179555).

Almost surely, 2^30484440 is an apocalyptic number.

30484440 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30484440 is an abundant number, since it is smaller than the sum of its proper divisors (82752840).

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

30484440 is a wasteful number, since it uses less digits than its factorization.

30484440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12121 (or 12114 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

The square root of 30484440 is about 5521.2715926678. The cubic root of 30484440 is about 312.3868475672.

The spelling of 30484440 in words is "thirty million, four hundred eighty-four thousand, four hundred forty".