40343242 has 8 divisors (see below), whose sum is σ = 63146016. Its totient is φ = 19294572.

The previous prime is 40343239. The next prime is 40343267. The reversal of 40343242 is 24234304.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 438468 + ... + 438559.

It is an arithmetic number, because the mean of its divisors is an integer number (7893252).

Almost surely, 2^40343242 is an apocalyptic number.

40343242 is a deficient number, since it is larger than the sum of its proper divisors (22802774).

40343242 is a wasteful number, since it uses less digits than its factorization.

40343242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 877052.

The product of its (nonzero) digits is 2304, while the sum is 22.

The square root of 40343242 is about 6351.6330183662. The cubic root of 40343242 is about 342.9706304698.

Adding to 40343242 its reverse (24234304), we get a palindrome (64577546).

The spelling of 40343242 in words is "forty million, three hundred forty-three thousand, two hundred forty-two".