40323247 has 2 divisors, whose sum is σ = 40323248. Its totient is φ = 40323246.

The previous prime is 40323233. The next prime is 40323277. The reversal of 40323247 is 74232304.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40323247 - 2¹⁵ = 40290479 is a prime.

It is equal to p_2452174 and since 40323247 and 2452174 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40323277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20161623 + 20161624.

It is an arithmetic number, because the mean of its divisors is an integer number (20161624).

Almost surely, 2^40323247 is an apocalyptic number.

40323247 is a deficient number, since it is larger than the sum of its proper divisors (1).

40323247 is an equidigital number, since it uses as much as digits as its factorization.

40323247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 25.

The square root of 40323247 is about 6350.0588186252. The cubic root of 40323247 is about 342.9139598383.

The spelling of 40323247 in words is "forty million, three hundred twenty-three thousand, two hundred forty-seven".