40781862 has 48 divisors (see below), whose sum is σ = 98055360. Its totient is φ = 12145200.

The previous prime is 40781843. The next prime is 40781887. The reversal of 40781862 is 26818704.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9937 + ... + 13427.

It is an arithmetic number, because the mean of its divisors is an integer number (2042820).

Almost surely, 2^40781862 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40781862, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49027680).

40781862 is an abundant number, since it is smaller than the sum of its proper divisors (57273498).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40781862 is a wasteful number, since it uses less digits than its factorization.

40781862 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3569 (or 3566 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 40781862 is about 6386.0678042125. The cubic root of 40781862 is about 344.2091019585.

The spelling of 40781862 in words is "forty million, seven hundred eighty-one thousand, eight hundred sixty-two".