30750480 has 60 divisors (see below), whose sum is σ = 103272780. Its totient is φ = 8199936.

The previous prime is 30750463. The next prime is 30750487. The reversal of 30750480 is 8405703.

It can be written as a sum of positive squares in 2 ways, for example, as 9072144 + 21678336 = 3012^2 + 4656^2 .

It is a tau number, because it is divible by the number of its divisors (60).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30750487) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20635 + ... + 22074.

It is an arithmetic number, because the mean of its divisors is an integer number (1721213).

Almost surely, 2^30750480 is an apocalyptic number.

30750480 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30750480 is an abundant number, since it is smaller than the sum of its proper divisors (72522300).

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

30750480 is a wasteful number, since it uses less digits than its factorization.

30750480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42728 (or 42719 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 30750480 is about 5545.3115331783. The cubic root of 30750480 is about 313.2929579282.

The spelling of 30750480 in words is "thirty million, seven hundred fifty thousand, four hundred eighty".