40571946 has 12 divisors (see below), whose sum is σ = 87905922. Its totient is φ = 13523976.

The previous prime is 40571903. The next prime is 40571959. The reversal of 40571946 is 64917504.

40571946 is a `hidden beast` number, since 40 + 571 + 9 + 46 = 666.

It can be written as a sum of positive squares in only one way, i.e., 29582721 + 10989225 = 5439^2 + 3315^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 40571946.

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 5 ways as a sum of consecutive naturals, for example, 1126981 + ... + 1127016.

Almost surely, 2^40571946 is an apocalyptic number.

40571946 is an abundant number, since it is smaller than the sum of its proper divisors (47333976).

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

40571946 is a wasteful number, since it uses less digits than its factorization.

40571946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2254005 (or 2254002 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 40571946 is about 6369.6111341274. The cubic root of 40571946 is about 343.6175045958.

The spelling of 40571946 in words is "forty million, five hundred seventy-one thousand, nine hundred forty-six".