20040332 has 12 divisors (see below), whose sum is σ = 37768416. Its totient is φ = 9249360.

The previous prime is 20040329. The next prime is 20040359. The reversal of 20040332 is 23304002.

It is a super-2 number, since 2×20040332² = 803229813340448, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 192644 + ... + 192747.

It is an arithmetic number, because the mean of its divisors is an integer number (3147368).

Almost surely, 2^20040332 is an apocalyptic number.

It is an amenable number.

20040332 is a deficient number, since it is larger than the sum of its proper divisors (17728084).

20040332 is a wasteful number, since it uses less digits than its factorization.

20040332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385408 (or 385406 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 14.

The square root of 20040332 is about 4476.6429386316. The cubic root of 20040332 is about 271.6241022972.

Adding to 20040332 its reverse (23304002), we get a palindrome (43344334).

The spelling of 20040332 in words is "twenty million, forty thousand, three hundred thirty-two".