40111002 has 48 divisors (see below), whose sum is σ = 92046240. Its totient is φ = 12602016.

The previous prime is 40110989. The next prime is 40111003. The reversal of 40111002 is 20011104.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (40111003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21553 + ... + 23339.

It is an arithmetic number, because the mean of its divisors is an integer number (1917630).

Almost surely, 2^40111002 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40111002, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46023120).

40111002 is an abundant number, since it is smaller than the sum of its proper divisors (51935238).

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

40111002 is a wasteful number, since it uses less digits than its factorization.

40111002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1867 (or 1864 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 40111002 is about 6333.3247192924. The cubic root of 40111002 is about 342.3112484055.

Adding to 40111002 its reverse (20011104), we get a palindrome (60122106).

The spelling of 40111002 in words is "forty million, one hundred eleven thousand, two".