40332018 has 48 divisors (see below), whose sum is σ = 85843296. Its totient is φ = 12629760.

The previous prime is 40332013. The next prime is 40332029. The reversal of 40332018 is 81023304.

It is a happy number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 40331985 and 40332003.

It is not an unprimeable number, because it can be changed into a prime (40332013) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 307813 + ... + 307943.

It is an arithmetic number, because the mean of its divisors is an integer number (1788402).

Almost surely, 2^40332018 is an apocalyptic number.

40332018 is an abundant number, since it is smaller than the sum of its proper divisors (45511278).

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

40332018 is a wasteful number, since it uses less digits than its factorization.

40332018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279 (or 256 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 40332018 is about 6350.7494045979. The cubic root of 40332018 is about 342.9388212645.

The spelling of 40332018 in words is "forty million, three hundred thirty-two thousand, eighteen".