455730638 has 16 divisors (see below), whose sum is σ = 753432624. Its totient is φ = 205013760.

The previous prime is 455730631. The next prime is 455730643. The reversal of 455730638 is 836037554.

It is a junction number, because it is equal to n+sod(n) for n = 455730595 and 455730604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (455730631) 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 in 7 ways as a sum of consecutive naturals, for example, 104645 + ... + 108912.

It is an arithmetic number, because the mean of its divisors is an integer number (47089539).

Almost surely, 2^455730638 is an apocalyptic number.

455730638 is a deficient number, since it is larger than the sum of its proper divisors (297701986).

455730638 is a wasteful number, since it uses less digits than its factorization.

455730638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213667.

The product of its (nonzero) digits is 302400, while the sum is 41.

The square root of 455730638 is about 21347.8485567047. The cubic root of 455730638 is about 769.5486408540.

The spelling of 455730638 in words is "four hundred fifty-five million, seven hundred thirty thousand, six hundred thirty-eight".