40181337 has 24 divisors (see below), whose sum is σ = 66605760. Its totient is φ = 22865760.

The previous prime is 40181303. The next prime is 40181341. The reversal of 40181337 is 73318104.

40181337 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-40181337 is a prime.

It is a super-2 number, since 2×40181337² = 3229079686215138, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40181337.

It is not an unprimeable number, because it can be changed into a prime (40181347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15762 + ... + 18132.

It is an arithmetic number, because the mean of its divisors is an integer number (2775240).

Almost surely, 2^40181337 is an apocalyptic number.

It is an amenable number.

40181337 is a deficient number, since it is larger than the sum of its proper divisors (26424423).

40181337 is a wasteful number, since it uses less digits than its factorization.

40181337 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2653 (or 2650 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 40181337 is about 6338.8750579263. The cubic root of 40181337 is about 342.5112135139.

The spelling of 40181337 in words is "forty million, one hundred eighty-one thousand, three hundred thirty-seven".