40535380 has 12 divisors (see below), whose sum is σ = 85124340. Its totient is φ = 16214144.

The previous prime is 40535377. The next prime is 40535381. The reversal of 40535380 is 8353504.

It can be written as a sum of positive squares in 2 ways, for example, as 4511376 + 36024004 = 2124^2 + 6002^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40535381) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1013365 + ... + 1013404.

It is an arithmetic number, because the mean of its divisors is an integer number (7093695).

Almost surely, 2^40535380 is an apocalyptic number.

It is an amenable number.

40535380 is an abundant number, since it is smaller than the sum of its proper divisors (44588960).

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

40535380 is a wasteful number, since it uses less digits than its factorization.

40535380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2026778 (or 2026776 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 40535380 is about 6366.7401391921. The cubic root of 40535380 is about 343.5142436359.

Adding to 40535380 its reverse (8353504), we get a palindrome (48888884).

The spelling of 40535380 in words is "forty million, five hundred thirty-five thousand, three hundred eighty".