40302001 has 2 divisors, whose sum is σ = 40302002. Its totient is φ = 40302000.

The previous prime is 40301999. The next prime is 40302011. The reversal of 40302001 is 10020304.

It is an a-pointer prime, because the next prime (40302011) can be obtained adding 40302001 to its sum of digits (10).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38452401 + 1849600 = 6201^2 + 1360^2 .

It is a cyclic number.

It is not a de Polignac number, because 40302001 - 2¹ = 40301999 is a prime.

Together with 40301999, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (40302011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20151000 + 20151001.

It is an arithmetic number, because the mean of its divisors is an integer number (20151001).

Almost surely, 2^40302001 is an apocalyptic number.

It is an amenable number.

40302001 is a deficient number, since it is larger than the sum of its proper divisors (1).

40302001 is an equidigital number, since it uses as much as digits as its factorization.

40302001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 40302001 is about 6348.3857003178. The cubic root of 40302001 is about 342.8537230396.

Adding to 40302001 its reverse (10020304), we get a palindrome (50322305).

The spelling of 40302001 in words is "forty million, three hundred two thousand, one".