40024057 has 2 divisors, whose sum is σ = 40024058. Its totient is φ = 40024056.

The previous prime is 40024009. The next prime is 40024073. The reversal of 40024057 is 75042004.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27499536 + 12524521 = 5244^2 + 3539^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40024057 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (40024087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20012028 + 20012029.

It is an arithmetic number, because the mean of its divisors is an integer number (20012029).

Almost surely, 2^40024057 is an apocalyptic number.

It is an amenable number.

40024057 is a deficient number, since it is larger than the sum of its proper divisors (1).

40024057 is an equidigital number, since it uses as much as digits as its factorization.

40024057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1120, while the sum is 22.

The square root of 40024057 is about 6326.4569073060. The cubic root of 40024057 is about 342.0637370806.

The spelling of 40024057 in words is "forty million, twenty-four thousand, fifty-seven".