40196844 has 48 divisors (see below), whose sum is σ = 106444800. Its totient is φ = 13112208.

The previous prime is 40196833. The next prime is 40196861. The reversal of 40196844 is 44869104.

It is a happy number.

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 = 40196799 and 40196808.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1117 + ... + 9035.

It is an arithmetic number, because the mean of its divisors is an integer number (2217600).

Almost surely, 2^40196844 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 40196844, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53222400).

40196844 is an abundant number, since it is smaller than the sum of its proper divisors (66247956).

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

40196844 is a wasteful number, since it uses less digits than its factorization.

40196844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7979 (or 7971 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 40196844 is about 6340.0981064965. The cubic root of 40196844 is about 342.5552691101. Note that the first 3 decimals are identical.

The spelling of 40196844 in words is "forty million, one hundred ninety-six thousand, eight hundred forty-four".