40438833 has 16 divisors (see below), whose sum is σ = 55599936. Its totient is φ = 26127360.

The previous prime is 40438829. The next prime is 40438843. The reversal of 40438833 is 33883404.

It is not a de Polignac number, because 40438833 - 2² = 40438829 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40438794 and 40438803.

It is not an unprimeable number, because it can be changed into a prime (40438813) 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, 19041 + ... + 21057.

It is an arithmetic number, because the mean of its divisors is an integer number (3474996).

Almost surely, 2^40438833 is an apocalyptic number.

It is an amenable number.

40438833 is a deficient number, since it is larger than the sum of its proper divisors (15161103).

40438833 is a wasteful number, since it uses less digits than its factorization.

40438833 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2224.

The product of its (nonzero) digits is 27648, while the sum is 33.

The square root of 40438833 is about 6359.1534813999. The cubic root of 40438833 is about 343.2412998886.

The spelling of 40438833 in words is "forty million, four hundred thirty-eight thousand, eight hundred thirty-three".