40446143 has 8 divisors (see below), whose sum is σ = 41946528. Its totient is φ = 38967264.

The previous prime is 40446137. The next prime is 40446151. The reversal of 40446143 is 34164404.

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

It is a cyclic number.

It is not a de Polignac number, because 40446143 - 2⁴ = 40446127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40446113) 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, 1496 + ... + 9117.

It is an arithmetic number, because the mean of its divisors is an integer number (5243316).

Almost surely, 2^40446143 is an apocalyptic number.

40446143 is a deficient number, since it is larger than the sum of its proper divisors (1500385).

40446143 is a wasteful number, since it uses less digits than its factorization.

40446143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10753.

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 40446143 is about 6359.7282174634. The cubic root of 40446143 is about 343.2619808574.

The spelling of 40446143 in words is "forty million, four hundred forty-six thousand, one hundred forty-three".