40378877 has 16 divisors (see below), whose sum is σ = 51706752. Its totient is φ = 30611520.

The previous prime is 40378867. The next prime is 40378903. The reversal of 40378877 is 77887304.

40378877 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 40378877 - 2⁶ = 40378813 is a prime.

It is a super-2 number, since 2×40378877² = 3260907415562258, which contains 22 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 (40378837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4238 + ... + 9935.

It is an arithmetic number, because the mean of its divisors is an integer number (3231672).

Almost surely, 2^40378877 is an apocalyptic number.

It is an amenable number.

40378877 is a deficient number, since it is larger than the sum of its proper divisors (11327875).

40378877 is a wasteful number, since it uses less digits than its factorization.

40378877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14228.

The product of its (nonzero) digits is 263424, while the sum is 44.

The square root of 40378877 is about 6354.4375832956. The cubic root of 40378877 is about 343.0715822121.

The spelling of 40378877 in words is "forty million, three hundred seventy-eight thousand, eight hundred seventy-seven".