30504040 has 32 divisors (see below), whose sum is σ = 78439680. Its totient is φ = 10458432.

The previous prime is 30504017. The next prime is 30504043. The reversal of 30504040 is 4040503.

It is not an unprimeable number, because it can be changed into a prime (30504043) 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, 54192 + ... + 54751.

It is an arithmetic number, because the mean of its divisors is an integer number (2451240).

Almost surely, 2^30504040 is an apocalyptic number.

It is an amenable number.

30504040 is an abundant number, since it is smaller than the sum of its proper divisors (47935640).

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

30504040 is a wasteful number, since it uses less digits than its factorization.

30504040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108961 (or 108957 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 16.

The square root of 30504040 is about 5523.0462608962. The cubic root of 30504040 is about 312.4537830318.

Adding to 30504040 its reverse (4040503), we get a palindrome (34544543).

The spelling of 30504040 in words is "thirty million, five hundred four thousand, forty".