457420493 has 2 divisors, whose sum is σ = 457420494. Its totient is φ = 457420492.

The previous prime is 457420489. The next prime is 457420501. The reversal of 457420493 is 394024754.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 416690569 + 40729924 = 20413^2 + 6382^2 .

It is a cyclic number.

It is not a de Polignac number, because 457420493 - 2² = 457420489 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (457420463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 228710246 + 228710247.

It is an arithmetic number, because the mean of its divisors is an integer number (228710247).

Almost surely, 2^457420493 is an apocalyptic number.

It is an amenable number.

457420493 is a deficient number, since it is larger than the sum of its proper divisors (1).

457420493 is an equidigital number, since it uses as much as digits as its factorization.

457420493 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120960, while the sum is 38.

The square root of 457420493 is about 21387.3909816041. The cubic root of 457420493 is about 770.4986330069.

The spelling of 457420493 in words is "four hundred fifty-seven million, four hundred twenty thousand, four hundred ninety-three".