40377887 has 4 divisors (see below), whose sum is σ = 44048616. Its totient is φ = 36707160.

The previous prime is 40377877. The next prime is 40377901. The reversal of 40377887 is 78877304.

40377887 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40377887 - 2⁶ = 40377823 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40377847) 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 3 ways as a sum of consecutive naturals, for example, 1835348 + ... + 1835369.

It is an arithmetic number, because the mean of its divisors is an integer number (11012154).

Almost surely, 2^40377887 is an apocalyptic number.

40377887 is a deficient number, since it is larger than the sum of its proper divisors (3670729).

40377887 is a wasteful number, since it uses less digits than its factorization.

40377887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3670728.

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

The square root of 40377887 is about 6354.3596845001. The cubic root of 40377887 is about 343.0687784059.

The spelling of 40377887 in words is "forty million, three hundred seventy-seven thousand, eight hundred eighty-seven".