40024247 has 2 divisors, whose sum is σ = 40024248. Its totient is φ = 40024246.

The previous prime is 40024183. The next prime is 40024267. The reversal of 40024247 is 74242004.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40024247 - 2⁶ = 40024183 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40024267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20012123 + 20012124.

It is an arithmetic number, because the mean of its divisors is an integer number (20012124).

Almost surely, 2^40024247 is an apocalyptic number.

40024247 is a deficient number, since it is larger than the sum of its proper divisors (1).

40024247 is an equidigital number, since it uses as much as digits as its factorization.

40024247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1792, while the sum is 23.

The square root of 40024247 is about 6326.4719235922. The cubic root of 40024247 is about 342.0642783552.

The spelling of 40024247 in words is "forty million, twenty-four thousand, two hundred forty-seven".