40630573 has 2 divisors, whose sum is σ = 40630574. Its totient is φ = 40630572.

The previous prime is 40630519. The next prime is 40630589. The reversal of 40630573 is 37503604.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38775529 + 1855044 = 6227^2 + 1362^2 .

It is a cyclic number.

It is not a de Polignac number, because 40630573 - 2²¹ = 38533421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40630273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20315286 + 20315287.

It is an arithmetic number, because the mean of its divisors is an integer number (20315287).

Almost surely, 2^40630573 is an apocalyptic number.

It is an amenable number.

40630573 is a deficient number, since it is larger than the sum of its proper divisors (1).

40630573 is an equidigital number, since it uses as much as digits as its factorization.

40630573 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7560, while the sum is 28.

The square root of 40630573 is about 6374.2115590871. The cubic root of 40630573 is about 343.7829355550.

The spelling of 40630573 in words is "forty million, six hundred thirty thousand, five hundred seventy-three".