502240457 has 2 divisors, whose sum is σ = 502240458. Its totient is φ = 502240456.

The previous prime is 502240441. The next prime is 502240549. The reversal of 502240457 is 754042205.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 419266576 + 82973881 = 20476^2 + 9109^2 .

It is a cyclic number.

It is not a de Polignac number, because 502240457 - 2⁴ = 502240441 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (502240157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 251120228 + 251120229.

It is an arithmetic number, because the mean of its divisors is an integer number (251120229).

Almost surely, 2^502240457 is an apocalyptic number.

It is an amenable number.

502240457 is a deficient number, since it is larger than the sum of its proper divisors (1).

502240457 is an equidigital number, since it uses as much as digits as its factorization.

502240457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11200, while the sum is 29.

The square root of 502240457 is about 22410.7219205451. The cubic root of 502240457 is about 794.8842609355.

The spelling of 502240457 in words is "five hundred two million, two hundred forty thousand, four hundred fifty-seven".