40990968 has 128 divisors (see below), whose sum is σ = 122572800. Its totient is φ = 12659328.

The previous prime is 40990933. The next prime is 40990969. The reversal of 40990968 is 86909904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40990969) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 183705 + ... + 183927.

It is an arithmetic number, because the mean of its divisors is an integer number (957600).

Almost surely, 2^40990968 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 40990968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61286400).

40990968 is an abundant number, since it is smaller than the sum of its proper divisors (81581832).

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

40990968 is a wasteful number, since it uses less digits than its factorization.

40990968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298 (or 288 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 45.

The square root of 40990968 is about 6402.4189178778. The cubic root of 40990968 is about 344.7964016112.

The spelling of 40990968 in words is "forty million, nine hundred ninety thousand, nine hundred sixty-eight".