457238407 has 2 divisors, whose sum is σ = 457238408. Its totient is φ = 457238406.

The previous prime is 457238357. The next prime is 457238461. The reversal of 457238407 is 704832754.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 457238407 - 2¹⁹ = 456714119 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 457238407.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (457238497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 228619203 + 228619204.

It is an arithmetic number, because the mean of its divisors is an integer number (228619204).

Almost surely, 2^457238407 is an apocalyptic number.

457238407 is a deficient number, since it is larger than the sum of its proper divisors (1).

457238407 is an equidigital number, since it uses as much as digits as its factorization.

457238407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 188160, while the sum is 40.

The square root of 457238407 is about 21383.1337039266. The cubic root of 457238407 is about 770.3963816238.

The spelling of 457238407 in words is "four hundred fifty-seven million, two hundred thirty-eight thousand, four hundred seven".