40871232 has 42 divisors (see below), whose sum is σ = 117151658. Its totient is φ = 13623552.

The previous prime is 40871209. The next prime is 40871239. The reversal of 40871232 is 23217804.

It can be written as a sum of positive squares in only one way, i.e., 29419776 + 11451456 = 5424^2 + 3384^2 .

It is a junction number, because it is equal to n+sod(n) for n = 40871196 and 40871205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40871239) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 34903 + ... + 36054.

Almost surely, 2^40871232 is an apocalyptic number.

It is an amenable number.

40871232 is an abundant number, since it is smaller than the sum of its proper divisors (76280426).

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

40871232 is a wasteful number, since it uses less digits than its factorization.

40871232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70975 (or 70962 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 40871232 is about 6393.0612385617. The cubic root of 40871232 is about 344.4603535566.

The spelling of 40871232 in words is "forty million, eight hundred seventy-one thousand, two hundred thirty-two".