40024073 has 2 divisors, whose sum is σ = 40024074. Its totient is φ = 40024072.

The previous prime is 40024057. The next prime is 40024079. The reversal of 40024073 is 37042004.

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., 26245129 + 13778944 = 5123^2 + 3712^2 .

It is a cyclic number.

It is not a de Polignac number, because 40024073 - 2⁴ = 40024057 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (40024079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20012036 + 20012037.

It is an arithmetic number, because the mean of its divisors is an integer number (20012037).

Almost surely, 2^40024073 is an apocalyptic number.

It is an amenable number.

40024073 is a deficient number, since it is larger than the sum of its proper divisors (1).

40024073 is an equidigital number, since it uses as much as digits as its factorization.

40024073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 672, while the sum is 20.

The square root of 40024073 is about 6326.4581718368. The cubic root of 40024073 is about 342.0637826617.

Adding to 40024073 its reverse (37042004), we get a palindrome (77066077).

The spelling of 40024073 in words is "forty million, twenty-four thousand, seventy-three".