40220342 has 8 divisors (see below), whose sum is σ = 60555600. Its totient is φ = 20035144.

The previous prime is 40220329. The next prime is 40220381. The reversal of 40220342 is 24302204.

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

It is a self number, because there is not a number n which added to its sum of digits gives 40220342.

It is a congruent number.

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, 36842 + ... + 37917.

It is an arithmetic number, because the mean of its divisors is an integer number (7569450).

Almost surely, 2^40220342 is an apocalyptic number.

40220342 is a deficient number, since it is larger than the sum of its proper divisors (20335258).

40220342 is a wasteful number, since it uses less digits than its factorization.

40220342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75030.

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 40220342 is about 6341.9509616521. The cubic root of 40220342 is about 342.6220056574.

Adding to 40220342 its reverse (24302204), we get a palindrome (64522546).

The spelling of 40220342 in words is "forty million, two hundred twenty thousand, three hundred forty-two".