46318644 has 18 divisors (see below), whose sum is σ = 117083330. Its totient is φ = 15439536.

The previous prime is 46318627. The next prime is 46318733. The reversal of 46318644 is 44681364.

46318644 is a `hidden beast` number, since 4 + 6 + 3 + 1 + 8 + 644 = 666.

It can be written as a sum of positive squares in only one way, i.e., 37675044 + 8643600 = 6138^2 + 2940^2 .

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: 1286629 = 46318644 / (4 + 6 + 3 + 1 + 8 + 6 + 4 + 4).

It is a junction number, because it is equal to n+sod(n) for n = 46318599 and 46318608.

It is a congruent number.

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, 643279 + ... + 643350.

Almost surely, 2^46318644 is an apocalyptic number.

It is an amenable number.

46318644 is an abundant number, since it is smaller than the sum of its proper divisors (70764686).

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

46318644 is a wasteful number, since it uses less digits than its factorization.

46318644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1286639 (or 1286634 counting only the distinct ones).

The product of its digits is 55296, while the sum is 36.

The square root of 46318644 is about 6805.7801903970. The cubic root of 46318644 is about 359.1302150465.

The spelling of 46318644 in words is "forty-six million, three hundred eighteen thousand, six hundred forty-four".