40111770 has 64 divisors (see below), whose sum is σ = 102207744. Its totient is φ = 10053120.

The previous prime is 40111763. The next prime is 40111781. The reversal of 40111770 is 7711104.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 41614 + ... + 42566.

It is an arithmetic number, because the mean of its divisors is an integer number (1596996).

Almost surely, 2^40111770 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40111770, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51103872).

40111770 is an abundant number, since it is smaller than the sum of its proper divisors (62095974).

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

40111770 is a wasteful number, since it uses less digits than its factorization.

40111770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1047.

The product of its (nonzero) digits is 196, while the sum is 21.

The square root of 40111770 is about 6333.3853506636. The cubic root of 40111770 is about 342.3134331208.

Adding to 40111770 its reverse (7711104), we get a palindrome (47822874).

The spelling of 40111770 in words is "forty million, one hundred eleven thousand, seven hundred seventy".