30744040 has 32 divisors (see below), whose sum is σ = 71047080. Its totient is φ = 11964672.

The previous prime is 30744037. The next prime is 30744059. The reversal of 30744040 is 4044703.

It can be written as a sum of positive squares in 4 ways, for example, as 30713764 + 30276 = 5542^2 + 174^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8907 + ... + 11866.

Almost surely, 2^30744040 is an apocalyptic number.

It is an amenable number.

30744040 is an abundant number, since it is smaller than the sum of its proper divisors (40303040).

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

30744040 is a wasteful number, since it uses less digits than its factorization.

30744040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20821 (or 20817 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 22.

The square root of 30744040 is about 5544.7308320603. The cubic root of 30744040 is about 313.2710856678.

Adding to 30744040 its reverse (4044703), we get a palindrome (34788743).

The spelling of 30744040 in words is "thirty million, seven hundred forty-four thousand, forty".