30485380 has 24 divisors (see below), whose sum is σ = 66228120. Its totient is φ = 11773440.

The previous prime is 30485347. The next prime is 30485381. The reversal of 30485380 is 8358403.

It can be written as a sum of positive squares in 4 ways, for example, as 7884864 + 22600516 = 2808^2 + 4754^2 .

It is not an unprimeable number, because it can be changed into a prime (30485381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25701 + ... + 26860.

It is an arithmetic number, because the mean of its divisors is an integer number (2759505).

Almost surely, 2^30485380 is an apocalyptic number.

It is an amenable number.

30485380 is an abundant number, since it is smaller than the sum of its proper divisors (35742740).

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

30485380 is a wasteful number, since it uses less digits than its factorization.

30485380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52599 (or 52597 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 30485380 is about 5521.3567173295. The cubic root of 30485380 is about 312.3900583923.

The spelling of 30485380 in words is "thirty million, four hundred eighty-five thousand, three hundred eighty".