40381380886 has 48 divisors (see below), whose sum is σ = 76984966080. Its totient is φ = 15708855120.

The previous prime is 40381380839. The next prime is 40381380887. The reversal of 40381380886 is 68808318304.

It is a super-2 number, since 2×40381380886² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40381380887) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 681981 + ... + 738823.

It is an arithmetic number, because the mean of its divisors is an integer number (1603853460).

Almost surely, 2^40381380886 is an apocalyptic number.

40381380886 is a deficient number, since it is larger than the sum of its proper divisors (36603585194).

40381380886 is a wasteful number, since it uses less digits than its factorization.

40381380886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57529 (or 57522 counting only the distinct ones).

The product of its (nonzero) digits is 884736, while the sum is 49.

The spelling of 40381380886 in words is "forty billion, three hundred eighty-one million, three hundred eighty thousand, eight hundred eighty-six".