40084001 has 2 divisors, whose sum is σ = 40084002. Its totient is φ = 40084000.

The previous prime is 40083991. The next prime is 40084039. The reversal of 40084001 is 10048004.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39627025 + 456976 = 6295^2 + 676^2 .

It is a cyclic number.

It is not a de Polignac number, because 40084001 - 2¹⁴ = 40067617 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (40086001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20042000 + 20042001.

It is an arithmetic number, because the mean of its divisors is an integer number (20042001).

Almost surely, 2^40084001 is an apocalyptic number.

It is an amenable number.

40084001 is a deficient number, since it is larger than the sum of its proper divisors (1).

40084001 is an equidigital number, since it uses as much as digits as its factorization.

40084001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 40084001 is about 6331.1926996420. The cubic root of 40084001 is about 342.2344214314.

The spelling of 40084001 in words is "forty million, eighty-four thousand, one".