40541778 has 24 divisors (see below), whose sum is σ = 91660608. Its totient is φ = 12926232.

The previous prime is 40541747. The next prime is 40541779. The reversal of 40541778 is 87714504.

40541778 is a `hidden beast` number, since 40 + 541 + 7 + 78 = 666.

40541778 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (40541779) 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 11 ways as a sum of consecutive naturals, for example, 48550 + ... + 49377.

It is an arithmetic number, because the mean of its divisors is an integer number (3819192).

Almost surely, 2^40541778 is an apocalyptic number.

40541778 is an abundant number, since it is smaller than the sum of its proper divisors (51118830).

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

40541778 is a wasteful number, since it uses less digits than its factorization.

40541778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97958 (or 97955 counting only the distinct ones).

The product of its (nonzero) digits is 31360, while the sum is 36.

The square root of 40541778 is about 6367.2425743017. The cubic root of 40541778 is about 343.5323158196.

It can be divided in two parts, 4054 and 1778, that added together give a cube (5832 = 18³).

The spelling of 40541778 in words is "forty million, five hundred forty-one thousand, seven hundred seventy-eight".