40521140 has 24 divisors (see below), whose sum is σ = 92830752. Its totient is φ = 14734880.

The previous prime is 40521133. The next prime is 40521157. The reversal of 40521140 is 4112504.

40521140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 91874 + ... + 92313.

It is an arithmetic number, because the mean of its divisors is an integer number (3867948).

Almost surely, 2^40521140 is an apocalyptic number.

It is an amenable number.

40521140 is an abundant number, since it is smaller than the sum of its proper divisors (52309612).

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

40521140 is a wasteful number, since it uses less digits than its factorization.

40521140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184207 (or 184205 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 40521140 is about 6365.6217292579. The cubic root of 40521140 is about 343.4740136298.

Adding to 40521140 its reverse (4112504), we get a palindrome (44633644).

It can be divided in two parts, 4052 and 1140, that multiplied together give a triangular number (4619280 = T₃₀₃₉).

The spelling of 40521140 in words is "forty million, five hundred twenty-one thousand, one hundred forty".