40719577 has 4 divisors (see below), whose sum is σ = 40902400. Its totient is φ = 40536756.

The previous prime is 40719563. The next prime is 40719593. The reversal of 40719577 is 77591704.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40719577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40719517) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91077 + ... + 91522.

It is an arithmetic number, because the mean of its divisors is an integer number (10225600).

Almost surely, 2^40719577 is an apocalyptic number.

It is an amenable number.

40719577 is a deficient number, since it is larger than the sum of its proper divisors (182823).

40719577 is a wasteful number, since it uses less digits than its factorization.

40719577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182822.

The product of its (nonzero) digits is 61740, while the sum is 40.

The square root of 40719577 is about 6381.1893092119. The cubic root of 40719577 is about 344.0337790203.

The spelling of 40719577 in words is "forty million, seven hundred nineteen thousand, five hundred seventy-seven".