40271380 has 24 divisors (see below), whose sum is σ = 85016232. Its totient is φ = 16023552.

The previous prime is 40271377. The next prime is 40271381. The reversal of 40271380 is 8317204.

40271380 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2669956 + 37601424 = 1634^2 + 6132^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40271381) 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 7 ways as a sum of consecutive naturals, for example, 1357 + ... + 9076.

It is an arithmetic number, because the mean of its divisors is an integer number (3542343).

Almost surely, 2^40271380 is an apocalyptic number.

It is an amenable number.

40271380 is an abundant number, since it is smaller than the sum of its proper divisors (44744852).

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

40271380 is a wasteful number, since it uses less digits than its factorization.

40271380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10635 (or 10633 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 40271380 is about 6345.9735265757. The cubic root of 40271380 is about 342.7668689249.

Adding to 40271380 its reverse (8317204), we get a palindrome (48588584).

The spelling of 40271380 in words is "forty million, two hundred seventy-one thousand, three hundred eighty".