457478269 has 2 divisors, whose sum is σ = 457478270. Its totient is φ = 457478268.

The previous prime is 457478261. The next prime is 457478293. The reversal of 457478269 is 962874754.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 452072644 + 5405625 = 21262^2 + 2325^2 .

It is a cyclic number.

It is not a de Polignac number, because 457478269 - 2³ = 457478261 is a prime.

It is a super-3 number, since 3×457478269³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (457478261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 228739134 + 228739135.

It is an arithmetic number, because the mean of its divisors is an integer number (228739135).

Almost surely, 2^457478269 is an apocalyptic number.

It is an amenable number.

457478269 is a deficient number, since it is larger than the sum of its proper divisors (1).

457478269 is an equidigital number, since it uses as much as digits as its factorization.

457478269 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3386880, while the sum is 52.

The square root of 457478269 is about 21388.7416413402. The cubic root of 457478269 is about 770.5310717627.

The spelling of 457478269 in words is "four hundred fifty-seven million, four hundred seventy-eight thousand, two hundred sixty-nine".