40761409 has 8 divisors (see below), whose sum is σ = 43948800. Its totient is φ = 37581456.

The previous prime is 40761353. The next prime is 40761419. The reversal of 40761409 is 90416704.

40761409 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 40761409 - 2²⁵ = 7206977 is a prime.

It is a super-2 number, since 2×40761409² = 3322984927330562, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40761419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15792 + ... + 18190.

It is an arithmetic number, because the mean of its divisors is an integer number (5493600).

Almost surely, 2^40761409 is an apocalyptic number.

It is an amenable number.

40761409 is a deficient number, since it is larger than the sum of its proper divisors (3187391).

40761409 is a wasteful number, since it uses less digits than its factorization.

40761409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3719.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 40761409 is about 6384.4662267100. The cubic root of 40761409 is about 344.1515495265.

It can be divided in two parts, 407 and 61409, that added together give a palindrome (61816).

The spelling of 40761409 in words is "forty million, seven hundred sixty-one thousand, four hundred nine".