40304330 has 32 divisors (see below), whose sum is σ = 80993088. Its totient is φ = 14313600.

The previous prime is 40304323. The next prime is 40304401. The reversal of 40304330 is 3340304.

It is a junction number, because it is equal to n+sod(n) for n = 40304299 and 40304308.

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, 470 + ... + 8990.

It is an arithmetic number, because the mean of its divisors is an integer number (2531034).

Almost surely, 2^40304330 is an apocalyptic number.

40304330 is an abundant number, since it is smaller than the sum of its proper divisors (40688758).

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

40304330 is a wasteful number, since it uses less digits than its factorization.

40304330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8582.

The product of its (nonzero) digits is 432, while the sum is 17.

The square root of 40304330 is about 6348.5691301269. The cubic root of 40304330 is about 342.8603272687.

Adding to 40304330 its reverse (3340304), we get a palindrome (43644634).

The spelling of 40304330 in words is "forty million, three hundred four thousand, three hundred thirty".