40330457 has 2 divisors, whose sum is σ = 40330458. Its totient is φ = 40330456.

The previous prime is 40330441. The next prime is 40330463. The reversal of 40330457 is 75403304.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25361296 + 14969161 = 5036^2 + 3869^2 .

It is a cyclic number.

It is not a de Polignac number, because 40330457 - 2⁴ = 40330441 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (40330417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20165228 + 20165229.

It is an arithmetic number, because the mean of its divisors is an integer number (20165229).

Almost surely, 2^40330457 is an apocalyptic number.

It is an amenable number.

40330457 is a deficient number, since it is larger than the sum of its proper divisors (1).

40330457 is an equidigital number, since it uses as much as digits as its factorization.

40330457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5040, while the sum is 26.

The square root of 40330457 is about 6350.6265045269. The cubic root of 40330457 is about 342.9343968689.

The spelling of 40330457 in words is "forty million, three hundred thirty thousand, four hundred fifty-seven".