463009644 has 18 divisors (see below), whose sum is σ = 1170385580. Its totient is φ = 154336536.

The previous prime is 463009633. The next prime is 463009663. The reversal of 463009644 is 446900364.

463009644 is a `hidden beast` number, since 4 + 6 + 3 + 0 + 0 + 9 + 644 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 12861379 = 463009644 / (4 + 6 + 3 + 0 + 0 + 9 + 6 + 4 + 4).

It is a junction number, because it is equal to n+sod(n) for n = 463009599 and 463009608.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6430654 + ... + 6430725.

Almost surely, 2^463009644 is an apocalyptic number.

It is an amenable number.

463009644 is an abundant number, since it is smaller than the sum of its proper divisors (707375936).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

463009644 is a wasteful number, since it uses less digits than its factorization.

463009644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12861389 (or 12861384 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 36.

The square root of 463009644 is about 21517.6588875277. The cubic root of 463009644 is about 773.6241389632.

The spelling of 463009644 in words is "four hundred sixty-three million, nine thousand, six hundred forty-four".