40097641 has 2 divisors, whose sum is σ = 40097642. Its totient is φ = 40097640.

The previous prime is 40097621. The next prime is 40097653. The reversal of 40097641 is 14679004.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38081241 + 2016400 = 6171^2 + 1420^2 .

It is a cyclic number.

It is not a de Polignac number, because 40097641 - 2⁵ = 40097609 is a prime.

It is not a weakly prime, because it can be changed into another prime (40097621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20048820 + 20048821.

It is an arithmetic number, because the mean of its divisors is an integer number (20048821).

Almost surely, 2^40097641 is an apocalyptic number.

It is an amenable number.

40097641 is a deficient number, since it is larger than the sum of its proper divisors (1).

40097641 is an equidigital number, since it uses as much as digits as its factorization.

40097641 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 40097641 is about 6332.2698142135. The cubic root of 40097641 is about 342.2732361539.

The spelling of 40097641 in words is "forty million, ninety-seven thousand, six hundred forty-one".