40751977 has 12 divisors (see below), whose sum is σ = 47509956. Its totient is φ = 34853280.

The previous prime is 40751959. The next prime is 40751983. The reversal of 40751977 is 77915704.

It can be written as a sum of positive squares in 2 ways, for example, as 3493161 + 37258816 = 1869^2 + 6104^2 .

It is a de Polignac number, because none of the positive numbers 2^k-40751977 is a prime.

It is a super-3 number, since 3×40751977³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40751927) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39723 + ... + 40735.

It is an arithmetic number, because the mean of its divisors is an integer number (3959163).

It is a vampire number, since it can be written as 5747 ⋅ 7091 (with its own digits).

Almost surely, 2^40751977 is an apocalyptic number.

It is an amenable number.

40751977 is a deficient number, since it is larger than the sum of its proper divisors (6757979).

40751977 is a wasteful number, since it uses less digits than its factorization.

40751977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1848 (or 1841 counting only the distinct ones).

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

The square root of 40751977 is about 6383.7275161147. The cubic root of 40751977 is about 344.1250024574.

The spelling of 40751977 in words is "forty million, seven hundred fifty-one thousand, nine hundred seventy-seven".