40181446 has 4 divisors (see below), whose sum is σ = 60272172. Its totient is φ = 20090722.

The previous prime is 40181431. The next prime is 40181461. The reversal of 40181446 is 64418104.

40181446 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (40181431) and next prime (40181461).

It is a super-2 number, since 2×40181446² = 3229097205301832, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 10045360 + ... + 10045363.

It is an arithmetic number, because the mean of its divisors is an integer number (15068043).

Almost surely, 2^40181446 is an apocalyptic number.

40181446 is a deficient number, since it is larger than the sum of its proper divisors (20090726).

40181446 is a wasteful number, since it uses less digits than its factorization.

40181446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20090725.

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 40181446 is about 6338.8836556605. The cubic root of 40181446 is about 342.5115232239.

The spelling of 40181446 in words is "forty million, one hundred eighty-one thousand, four hundred forty-six".