40989306 has 32 divisors (see below), whose sum is σ = 84369600. Its totient is φ = 13270400.

The previous prime is 40989283. The next prime is 40989307. The reversal of 40989306 is 60398904.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (40989307) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30856 + ... + 32156.

It is an arithmetic number, because the mean of its divisors is an integer number (2636550).

Almost surely, 2^40989306 is an apocalyptic number.

40989306 is an abundant number, since it is smaller than the sum of its proper divisors (43380294).

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

40989306 is a wasteful number, since it uses less digits than its factorization.

40989306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1454.

The product of its (nonzero) digits is 46656, while the sum is 39.

The square root of 40989306 is about 6402.2891218688. The cubic root of 40989306 is about 344.7917415654.

The spelling of 40989306 in words is "forty million, nine hundred eighty-nine thousand, three hundred six".