30960040 has 16 divisors (see below), whose sum is σ = 69660180. Its totient is φ = 12384000.

The previous prime is 30960037. The next prime is 30960053. The reversal of 30960040 is 4006903.

It can be written as a sum of positive squares in 2 ways, for example, as 26440164 + 4519876 = 5142^2 + 2126^2 .

It is a junction number, because it is equal to n+sod(n) for n = 30959993 and 30960020.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 386961 + ... + 387040.

Almost surely, 2^30960040 is an apocalyptic number.

It is an amenable number.

30960040 is an abundant number, since it is smaller than the sum of its proper divisors (38700140).

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

30960040 is a wasteful number, since it uses less digits than its factorization.

30960040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 774012 (or 774008 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 30960040 is about 5564.1746917220. The cubic root of 30960040 is about 314.0030291674.

Adding to 30960040 its reverse (4006903), we get a palindrome (34966943).

The spelling of 30960040 in words is "thirty million, nine hundred sixty thousand, forty".