40634417 has 2 divisors, whose sum is σ = 40634418. Its totient is φ = 40634416.

The previous prime is 40634389. The next prime is 40634431. The reversal of 40634417 is 71443604.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37957921 + 2676496 = 6161^2 + 1636^2 .

It is a cyclic number.

It is not a de Polignac number, because 40634417 - 2⁸ = 40634161 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40634417.

It is not a weakly prime, because it can be changed into another prime (40634467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20317208 + 20317209.

It is an arithmetic number, because the mean of its divisors is an integer number (20317209).

Almost surely, 2^40634417 is an apocalyptic number.

It is an amenable number.

40634417 is a deficient number, since it is larger than the sum of its proper divisors (1).

40634417 is an equidigital number, since it uses as much as digits as its factorization.

40634417 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8064, while the sum is 29.

The square root of 40634417 is about 6374.5130794438. The cubic root of 40634417 is about 343.7937768159.

The spelling of 40634417 in words is "forty million, six hundred thirty-four thousand, four hundred seventeen".