40319977 has 8 divisors (see below), whose sum is σ = 41005440. Its totient is φ = 39637920.

The previous prime is 40319969. The next prime is 40320001. The reversal of 40319977 is 77991304.

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 40319977 - 2³ = 40319969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40319927) 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, 35149 + ... + 36277.

It is an arithmetic number, because the mean of its divisors is an integer number (5125680).

Almost surely, 2^40319977 is an apocalyptic number.

It is an amenable number.

40319977 is a deficient number, since it is larger than the sum of its proper divisors (685463).

40319977 is a wasteful number, since it uses less digits than its factorization.

40319977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1703.

The product of its (nonzero) digits is 47628, while the sum is 40.

The square root of 40319977 is about 6349.8013354750. The cubic root of 40319977 is about 342.9046900907.

The spelling of 40319977 in words is "forty million, three hundred nineteen thousand, nine hundred seventy-seven".