40889473 has 2 divisors, whose sum is σ = 40889474. Its totient is φ = 40889472.

The previous prime is 40889467. The next prime is 40889521. The reversal of 40889473 is 37498804.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38850289 + 2039184 = 6233^2 + 1428^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40889473 is a prime.

It is not a weakly prime, because it can be changed into another prime (40859473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20444736 + 20444737.

It is an arithmetic number, because the mean of its divisors is an integer number (20444737).

Almost surely, 2^40889473 is an apocalyptic number.

It is an amenable number.

40889473 is a deficient number, since it is larger than the sum of its proper divisors (1).

40889473 is an equidigital number, since it uses as much as digits as its factorization.

40889473 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 193536, while the sum is 43.

The square root of 40889473 is about 6394.4877042653. The cubic root of 40889473 is about 344.5115906288.

The spelling of 40889473 in words is "forty million, eight hundred eighty-nine thousand, four hundred seventy-three".