30963040 has 48 divisors (see below), whose sum is σ = 73483200. Its totient is φ = 12328960.

The previous prime is 30962983. The next prime is 30963041. The reversal of 30963040 is 4036903.

It is a junction number, because it is equal to n+sod(n) for n = 30962996 and 30963014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30963041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68736 + ... + 69184.

It is an arithmetic number, because the mean of its divisors is an integer number (1530900).

Almost surely, 2^30963040 is an apocalyptic number.

It is an amenable number.

30963040 is an abundant number, since it is smaller than the sum of its proper divisors (42520160).

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

30963040 is a wasteful number, since it uses less digits than its factorization.

30963040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 895 (or 887 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 25.

The square root of 30963040 is about 5564.4442669507. Note that the first 3 decimals coincide. The cubic root of 30963040 is about 314.0131710434.

Adding to 30963040 its reverse (4036903), we get a palindrome (34999943).

The spelling of 30963040 in words is "thirty million, nine hundred sixty-three thousand, forty".