40077957 has 8 divisors (see below), whose sum is σ = 53555040. Its totient is φ = 26659760.

The previous prime is 40077953. The next prime is 40077991. The reversal of 40077957 is 75977004.

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 40077957 - 2² = 40077953 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40077953) 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, 13107 + ... + 15872.

It is an arithmetic number, because the mean of its divisors is an integer number (6694380).

Almost surely, 2^40077957 is an apocalyptic number.

It is an amenable number.

40077957 is a deficient number, since it is larger than the sum of its proper divisors (13477083).

40077957 is a wasteful number, since it uses less digits than its factorization.

40077957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29443.

The product of its (nonzero) digits is 61740, while the sum is 39.

The square root of 40077957 is about 6330.7153624215. The cubic root of 40077957 is about 342.2172194825.

The spelling of 40077957 in words is "forty million, seventy-seven thousand, nine hundred fifty-seven".