30603040 has 48 divisors (see below), whose sum is σ = 77866488. Its totient is φ = 11298816.

The previous prime is 30603037. The next prime is 30603049. The reversal of 30603040 is 4030603.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 22695696 + 7907344 = 4764^2 + 2812^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (30603049) by changing a digit.

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, 5277 + ... + 9436.

Almost surely, 2^30603040 is an apocalyptic number.

It is an amenable number.

30603040 is an abundant number, since it is smaller than the sum of its proper divisors (47263448).

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

30603040 is a wasteful number, since it uses less digits than its factorization.

30603040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14741 (or 14733 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 30603040 is about 5532.0014461314. The cubic root of 30603040 is about 312.7914379867.

Subtracting from 30603040 its sum of digits (16), we obtain a square (30603024 = 5532²).

Adding to 30603040 its reverse (4030603), we get a palindrome (34633643).

The spelling of 30603040 in words is "thirty million, six hundred three thousand, forty".