40072301 has 2 divisors, whose sum is σ = 40072302. Its totient is φ = 40072300.

The previous prime is 40072289. The next prime is 40072309. The reversal of 40072301 is 10327004.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26574025 + 13498276 = 5155^2 + 3674^2 .

It is a cyclic number.

It is not a de Polignac number, because 40072301 - 2⁶ = 40072237 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40072301.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40072309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20036150 + 20036151.

It is an arithmetic number, because the mean of its divisors is an integer number (20036151).

Almost surely, 2^40072301 is an apocalyptic number.

It is an amenable number.

40072301 is a deficient number, since it is larger than the sum of its proper divisors (1).

40072301 is an equidigital number, since it uses as much as digits as its factorization.

40072301 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 168, while the sum is 17.

The square root of 40072301 is about 6330.2686356900. The cubic root of 40072301 is about 342.2011202616.

Adding to 40072301 its reverse (10327004), we get a palindrome (50399305).

The spelling of 40072301 in words is "forty million, seventy-two thousand, three hundred one".