40889357 has 2 divisors, whose sum is σ = 40889358. Its totient is φ = 40889356.

The previous prime is 40889353. The next prime is 40889371. The reversal of 40889357 is 75398804.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38180041 + 2709316 = 6179^2 + 1646^2 .

It is a cyclic number.

It is not a de Polignac number, because 40889357 - 2² = 40889353 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40889353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20444678 + 20444679.

It is an arithmetic number, because the mean of its divisors is an integer number (20444679).

Almost surely, 2^40889357 is an apocalyptic number.

It is an amenable number.

40889357 is a deficient number, since it is larger than the sum of its proper divisors (1).

40889357 is an equidigital number, since it uses as much as digits as its factorization.

40889357 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 241920, while the sum is 44.

The square root of 40889357 is about 6394.4786339466. The cubic root of 40889357 is about 344.5112648450.

The spelling of 40889357 in words is "forty million, eight hundred eighty-nine thousand, three hundred fifty-seven".