40849956 has 72 divisors (see below), whose sum is σ = 120556800. Its totient is φ = 11419776.

The previous prime is 40849937. The next prime is 40849969. The reversal of 40849956 is 65994804.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10120 + ... + 13568.

It is an arithmetic number, because the mean of its divisors is an integer number (1674400).

Almost surely, 2^40849956 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 40849956, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60278400).

40849956 is an abundant number, since it is smaller than the sum of its proper divisors (79706844).

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

40849956 is a wasteful number, since it uses less digits than its factorization.

40849956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3513 (or 3508 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The square root of 40849956 is about 6391.3970303839. The cubic root of 40849956 is about 344.4005722208.

The spelling of 40849956 in words is "forty million, eight hundred forty-nine thousand, nine hundred fifty-six".