40342943 has 8 divisors (see below), whose sum is σ = 42403200. Its totient is φ = 38308248.

The previous prime is 40342933. The next prime is 40342949. The reversal of 40342943 is 34924304.

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

It is not a de Polignac number, because 40342943 - 2⁶ = 40342879 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 (40342949) 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, 3113 + ... + 9506.

It is an arithmetic number, because the mean of its divisors is an integer number (5300400).

Almost surely, 2^40342943 is an apocalyptic number.

40342943 is a deficient number, since it is larger than the sum of its proper divisors (2060257).

40342943 is a wasteful number, since it uses less digits than its factorization.

40342943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12781.

The product of its (nonzero) digits is 10368, while the sum is 29.

The square root of 40342943 is about 6351.6094810686. The cubic root of 40342943 is about 342.9697831700.

The spelling of 40342943 in words is "forty million, three hundred forty-two thousand, nine hundred forty-three".