40181076 has 48 divisors (see below), whose sum is σ = 112190400. Its totient is φ = 12362976.

The previous prime is 40181041. The next prime is 40181077. The reversal of 40181076 is 67018104.

It is a happy number.

It is a super-2 number, since 2×40181076² = 3229037737035552, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40181077) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12906 + ... + 15713.

It is an arithmetic number, because the mean of its divisors is an integer number (2337300).

Almost surely, 2^40181076 is an apocalyptic number.

It is an amenable number.

40181076 is an abundant number, since it is smaller than the sum of its proper divisors (72009324).

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

40181076 is a wasteful number, since it uses less digits than its factorization.

40181076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28645 (or 28637 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 40181076 is about 6338.8544706437. The cubic root of 40181076 is about 342.5104719124.

The spelling of 40181076 in words is "forty million, one hundred eighty-one thousand, seventy-six".