494256437 has 2 divisors, whose sum is σ = 494256438. Its totient is φ = 494256436.

The previous prime is 494256431. The next prime is 494256449. The reversal of 494256437 is 734652494.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 372065521 + 122190916 = 19289^2 + 11054^2 .

It is a cyclic number.

It is not a de Polignac number, because 494256437 - 2⁴ = 494256421 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 (494256431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 247128218 + 247128219.

It is an arithmetic number, because the mean of its divisors is an integer number (247128219).

Almost surely, 2^494256437 is an apocalyptic number.

It is an amenable number.

494256437 is a deficient number, since it is larger than the sum of its proper divisors (1).

494256437 is an equidigital number, since it uses as much as digits as its factorization.

494256437 is an evil number, because the sum of its binary digits is even.

The product of its digits is 725760, while the sum is 44.

The square root of 494256437 is about 22231.8788454777. The cubic root of 494256437 is about 790.6497016076.

The spelling of 494256437 in words is "four hundred ninety-four million, two hundred fifty-six thousand, four hundred thirty-seven".