40091377 has 2 divisors, whose sum is σ = 40091378. Its totient is φ = 40091376.

The previous prime is 40091347. The next prime is 40091413. The reversal of 40091377 is 77319004.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32273761 + 7817616 = 5681^2 + 2796^2 .

It is a cyclic number.

It is not a de Polignac number, because 40091377 - 2¹⁹ = 39567089 is a prime.

It is a super-2 number, since 2×40091377² = 3214637019512258, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (40091327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20045688 + 20045689.

It is an arithmetic number, because the mean of its divisors is an integer number (20045689).

Almost surely, 2^40091377 is an apocalyptic number.

It is an amenable number.

40091377 is a deficient number, since it is larger than the sum of its proper divisors (1).

40091377 is an equidigital number, since it uses as much as digits as its factorization.

40091377 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5292, while the sum is 31.

The square root of 40091377 is about 6331.7751855226. The cubic root of 40091377 is about 342.2554120695.

The spelling of 40091377 in words is "forty million, ninety-one thousand, three hundred seventy-seven".