40620577 has 2 divisors, whose sum is σ = 40620578. Its totient is φ = 40620576.

The previous prime is 40620551. The next prime is 40620589. The reversal of 40620577 is 77502604.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40398736 + 221841 = 6356^2 + 471^2 .

It is a cyclic number.

It is not a de Polignac number, because 40620577 - 2¹⁵ = 40587809 is a prime.

It is not a weakly prime, because it can be changed into another prime (40620527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20310288 + 20310289.

It is an arithmetic number, because the mean of its divisors is an integer number (20310289).

Almost surely, 2^40620577 is an apocalyptic number.

It is an amenable number.

40620577 is a deficient number, since it is larger than the sum of its proper divisors (1).

40620577 is an equidigital number, since it uses as much as digits as its factorization.

40620577 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11760, while the sum is 31.

The square root of 40620577 is about 6373.4274138802. The cubic root of 40620577 is about 343.7547405627.

The spelling of 40620577 in words is "forty million, six hundred twenty thousand, five hundred seventy-seven".