40339555 has 8 divisors (see below), whose sum is σ = 51255072. Its totient is φ = 30373248.

The previous prime is 40339553. The next prime is 40339571. The reversal of 40339555 is 55593304.

It is a happy number.

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 40339555 - 2¹ = 40339553 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40339555.

It is not an unprimeable number, because it can be changed into a prime (40339553) 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, 237207 + ... + 237376.

It is an arithmetic number, because the mean of its divisors is an integer number (6406884).

Almost surely, 2^40339555 is an apocalyptic number.

40339555 is a deficient number, since it is larger than the sum of its proper divisors (10915517).

40339555 is a wasteful number, since it uses less digits than its factorization.

40339555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474605.

The product of its (nonzero) digits is 40500, while the sum is 34.

The square root of 40339555 is about 6351.3427714146. The cubic root of 40339555 is about 342.9601820347.

The spelling of 40339555 in words is "forty million, three hundred thirty-nine thousand, five hundred fifty-five".