40871457 has 24 divisors (see below), whose sum is σ = 65908128. Its totient is φ = 24192000.

The previous prime is 40871447. The next prime is 40871461. The reversal of 40871457 is 75417804.

40871457 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 40871457 - 2¹⁵ = 40838689 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40871447) 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 23 ways as a sum of consecutive naturals, for example, 544 + ... + 9057.

It is an arithmetic number, because the mean of its divisors is an integer number (2746172).

Almost surely, 2^40871457 is an apocalyptic number.

It is an amenable number.

40871457 is a deficient number, since it is larger than the sum of its proper divisors (25036671).

40871457 is a wasteful number, since it uses less digits than its factorization.

40871457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9661 (or 9658 counting only the distinct ones).

The product of its (nonzero) digits is 31360, while the sum is 36.

The square root of 40871457 is about 6393.0788357410. The cubic root of 40871457 is about 344.4609856511.

It can be divided in two parts, 40871 and 457, that added together give a triangular number (41328 = T₂₈₇).

The spelling of 40871457 in words is "forty million, eight hundred seventy-one thousand, four hundred fifty-seven".