40835844 has 72 divisors (see below), whose sum is σ = 118966848. Its totient is φ = 11568960.

The previous prime is 40835791. The next prime is 40835849. The reversal of 40835844 is 44853804.

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

It is a junction number, because it is equal to n+sod(n) for n = 40835799 and 40835808.

It is not an unprimeable number, because it can be changed into a prime (40835849) 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, 32394 + ... + 33630.

Almost surely, 2^40835844 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 40835844, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59483424).

40835844 is an abundant number, since it is smaller than the sum of its proper divisors (78131004).

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

40835844 is a wasteful number, since it uses less digits than its factorization.

40835844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1385 (or 1380 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 36.

The square root of 40835844 is about 6390.2929510313. The cubic root of 40835844 is about 344.3609088517.

The spelling of 40835844 in words is "forty million, eight hundred thirty-five thousand, eight hundred forty-four".