40871380 has 36 divisors (see below), whose sum is σ = 94347540. Its totient is φ = 14861440.

The previous prime is 40871377. The next prime is 40871387. The reversal of 40871380 is 8317804.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 6625476 + 34245904 = 2574^2 + 5852^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40871387) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6025 + ... + 10864.

It is an arithmetic number, because the mean of its divisors is an integer number (2620765).

Almost surely, 2^40871380 is an apocalyptic number.

It is an amenable number.

40871380 is an abundant number, since it is smaller than the sum of its proper divisors (53476160).

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

40871380 is a wasteful number, since it uses less digits than its factorization.

40871380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16920 (or 16907 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 40871380 is about 6393.0728136007. The cubic root of 40871380 is about 344.4607693346.

The spelling of 40871380 in words is "forty million, eight hundred seventy-one thousand, three hundred eighty".