40445943 has 8 divisors (see below), whose sum is σ = 54945648. Its totient is φ = 26455104.

The previous prime is 40445903. The next prime is 40445953. The reversal of 40445943 is 34954404.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40445943 - 2⁸ = 40445687 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40445903) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 127030 + ... + 127347.

It is an arithmetic number, because the mean of its divisors is an integer number (6868206).

Almost surely, 2^40445943 is an apocalyptic number.

40445943 is a deficient number, since it is larger than the sum of its proper divisors (14499705).

40445943 is a wasteful number, since it uses less digits than its factorization.

40445943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254433.

The product of its (nonzero) digits is 34560, while the sum is 33.

The square root of 40445943 is about 6359.7124935016. The cubic root of 40445943 is about 343.2614150637.

The spelling of 40445943 in words is "forty million, four hundred forty-five thousand, nine hundred forty-three".