40765749 has 8 divisors (see below), whose sum is σ = 55823520. Its totient is φ = 26442576.

The previous prime is 40765733. The next prime is 40765757. The reversal of 40765749 is 94756704.

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

It is not a de Polignac number, because 40765749 - 2⁴ = 40765733 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40765749.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40765709) 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, 183519 + ... + 183740.

It is an arithmetic number, because the mean of its divisors is an integer number (6977940).

Almost surely, 2^40765749 is an apocalyptic number.

It is an amenable number.

40765749 is a deficient number, since it is larger than the sum of its proper divisors (15057771).

40765749 is a wasteful number, since it uses less digits than its factorization.

40765749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367299.

The product of its (nonzero) digits is 211680, while the sum is 42.

The square root of 40765749 is about 6384.8061051218. The cubic root of 40765749 is about 344.1637634052.

It can be divided in two parts, 40765 and 749, that added together give a palindrome (41514).

The spelling of 40765749 in words is "forty million, seven hundred sixty-five thousand, seven hundred forty-nine".