40557759 has 8 divisors (see below), whose sum is σ = 58993152. Its totient is φ = 24580440.

The previous prime is 40557743. The next prime is 40557779. The reversal of 40557759 is 95775504.

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

It is not a de Polignac number, because 40557759 - 2⁴ = 40557743 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40557759.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40557709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 614479 + ... + 614544.

It is an arithmetic number, because the mean of its divisors is an integer number (7374144).

Almost surely, 2^40557759 is an apocalyptic number.

40557759 is a deficient number, since it is larger than the sum of its proper divisors (18435393).

40557759 is a wasteful number, since it uses less digits than its factorization.

40557759 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1229037.

The product of its (nonzero) digits is 220500, while the sum is 42.

The square root of 40557759 is about 6368.4973894946. The cubic root of 40557759 is about 343.5774484294.

The spelling of 40557759 in words is "forty million, five hundred fifty-seven thousand, seven hundred fifty-nine".