40993236 has 48 divisors (see below), whose sum is σ = 107251200. Its totient is φ = 13539456.

The previous prime is 40993219. The next prime is 40993243. The reversal of 40993236 is 63239904.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 40993236.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 10525 + ... + 13883.

It is an arithmetic number, because the mean of its divisors is an integer number (2234400).

Almost surely, 2^40993236 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40993236, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53625600).

40993236 is an abundant number, since it is smaller than the sum of its proper divisors (66257964).

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

40993236 is a wasteful number, since it uses less digits than its factorization.

40993236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3485 (or 3477 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 36.

The square root of 40993236 is about 6402.5960359842. The cubic root of 40993236 is about 344.8027606040.

The spelling of 40993236 in words is "forty million, nine hundred ninety-three thousand, two hundred thirty-six".