459663638 has 16 divisors (see below), whose sum is σ = 791270304. Its totient is φ = 196179840.

The previous prime is 459663583. The next prime is 459663641. The reversal of 459663638 is 836366954.

It is a super-2 number, since 2×459663638² = 422581320198790088, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64745 + ... + 71492.

It is an arithmetic number, because the mean of its divisors is an integer number (49454394).

Almost surely, 2^459663638 is an apocalyptic number.

459663638 is a deficient number, since it is larger than the sum of its proper divisors (331606666).

459663638 is a wasteful number, since it uses less digits than its factorization.

459663638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136487.

The product of its digits is 2799360, while the sum is 50.

The square root of 459663638 is about 21439.7676759801. The cubic root of 459663638 is about 771.7560629146.

The spelling of 459663638 in words is "four hundred fifty-nine million, six hundred sixty-three thousand, six hundred thirty-eight".