40620589 has 2 divisors, whose sum is σ = 40620590. Its totient is φ = 40620588.

The previous prime is 40620577. The next prime is 40620607. The reversal of 40620589 is 98502604.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39501225 + 1119364 = 6285^2 + 1058^2 .

It is a cyclic number.

It is not a de Polignac number, because 40620589 - 2⁹ = 40620077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40620539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20310294 + 20310295.

It is an arithmetic number, because the mean of its divisors is an integer number (20310295).

Almost surely, 2^40620589 is an apocalyptic number.

It is an amenable number.

40620589 is a deficient number, since it is larger than the sum of its proper divisors (1).

40620589 is an equidigital number, since it uses as much as digits as its factorization.

40620589 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 40620589 is about 6373.4283552889. The cubic root of 40620589 is about 343.7547744130.

It can be divided in two parts, 40620 and 589, that added together give a square (41209 = 203²).

The spelling of 40620589 in words is "forty million, six hundred twenty thousand, five hundred eighty-nine".