457052639 has 2 divisors, whose sum is σ = 457052640. Its totient is φ = 457052638.

The previous prime is 457052579. The next prime is 457052723. The reversal of 457052639 is 936250754.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-457052639 is a prime.

It is a super-2 number, since 2×457052639² = 417794229633728642, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 457052596 and 457052605.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (457052339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 228526319 + 228526320.

It is an arithmetic number, because the mean of its divisors is an integer number (228526320).

Almost surely, 2^457052639 is an apocalyptic number.

457052639 is a deficient number, since it is larger than the sum of its proper divisors (1).

457052639 is an equidigital number, since it uses as much as digits as its factorization.

457052639 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 226800, while the sum is 41.

The square root of 457052639 is about 21378.7894652621. The cubic root of 457052639 is about 770.2920346144.

The spelling of 457052639 in words is "four hundred fifty-seven million, fifty-two thousand, six hundred thirty-nine".