40747255 has 8 divisors (see below), whose sum is σ = 49585824. Its totient is φ = 32138400.

The previous prime is 40747253. The next prime is 40747271. The reversal of 40747255 is 55274704.

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

It is not a de Polignac number, because 40747255 - 2¹ = 40747253 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 40747255.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40747253) 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, 57036 + ... + 57745.

It is an arithmetic number, because the mean of its divisors is an integer number (6198228).

Almost surely, 2^40747255 is an apocalyptic number.

40747255 is a deficient number, since it is larger than the sum of its proper divisors (8838569).

40747255 is a wasteful number, since it uses less digits than its factorization.

40747255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114857.

The product of its (nonzero) digits is 39200, while the sum is 34.

The square root of 40747255 is about 6383.3576587874. The cubic root of 40747255 is about 344.1117104968. Note that the first 3 decimals are identical.

The spelling of 40747255 in words is "forty million, seven hundred forty-seven thousand, two hundred fifty-five".