40345761 has 8 divisors (see below), whose sum is σ = 53838400. Its totient is φ = 26875152.

The previous prime is 40345751. The next prime is 40345769. The reversal of 40345761 is 16754304.

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

It is not a de Polignac number, because 40345761 - 2⁵ = 40345729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40345769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 610 + ... + 9003.

It is an arithmetic number, because the mean of its divisors is an integer number (6729800).

Almost surely, 2^40345761 is an apocalyptic number.

It is an amenable number.

40345761 is a deficient number, since it is larger than the sum of its proper divisors (13492639).

40345761 is a wasteful number, since it uses less digits than its factorization.

40345761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11015.

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 40345761 is about 6351.8313107324. The cubic root of 40345761 is about 342.9777685926.

It can be divided in two parts, 403 and 45761, that added together give a palindrome (46164).

The spelling of 40345761 in words is "forty million, three hundred forty-five thousand, seven hundred sixty-one".