457272649 has 2 divisors, whose sum is σ = 457272650. Its totient is φ = 457272648.

The previous prime is 457272643. The next prime is 457272689. The reversal of 457272649 is 946272754.

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., 430853049 + 26419600 = 20757^2 + 5140^2 .

It is a cyclic number.

It is not a de Polignac number, because 457272649 - 2⁵ = 457272617 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 457272599 and 457272608.

It is not a weakly prime, because it can be changed into another prime (457272643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 228636324 + 228636325.

It is an arithmetic number, because the mean of its divisors is an integer number (228636325).

Almost surely, 2^457272649 is an apocalyptic number.

It is an amenable number.

457272649 is a deficient number, since it is larger than the sum of its proper divisors (1).

457272649 is an equidigital number, since it uses as much as digits as its factorization.

457272649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 846720, while the sum is 46.

The square root of 457272649 is about 21383.9343667156. The cubic root of 457272649 is about 770.4156124773.

The spelling of 457272649 in words is "four hundred fifty-seven million, two hundred seventy-two thousand, six hundred forty-nine".