40304530 has 32 divisors (see below), whose sum is σ = 84280320. Its totient is φ = 13590720.

The previous prime is 40304527. The next prime is 40304549. The reversal of 40304530 is 3540304.

It is a junction number, because it is equal to n+sod(n) for n = 40304498 and 40304507.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 450 + ... + 8989.

It is an arithmetic number, because the mean of its divisors is an integer number (2633760).

Almost surely, 2^40304530 is an apocalyptic number.

40304530 is an abundant number, since it is smaller than the sum of its proper divisors (43975790).

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

40304530 is a wasteful number, since it uses less digits than its factorization.

40304530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9514.

The product of its (nonzero) digits is 720, while the sum is 19.

The square root of 40304530 is about 6348.5848816882. The cubic root of 40304530 is about 342.8608943869.

Adding to 40304530 its reverse (3540304), we get a palindrome (43844834).

The spelling of 40304530 in words is "forty million, three hundred four thousand, five hundred thirty".