3646450044 has 18 divisors (see below), whose sum is σ = 9217415480. Its totient is φ = 1215483336.

The previous prime is 3646450043. The next prime is 3646450057. The reversal of 3646450044 is 4400546463.

3646450044 is a `hidden beast` number, since 3 + 6 + 4 + 645 + 0 + 0 + 4 + 4 = 666.

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

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

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: 101290279 = 3646450044 / (3 + 6 + 4 + 6 + 4 + 5 + 0 + 0 + 4 + 4).

It is a junction number, because it is equal to n+sod(n) for n = 3646449990 and 3646450008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3646450043) 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 5 ways as a sum of consecutive naturals, for example, 50645104 + ... + 50645175.

Almost surely, 2^3646450044 is an apocalyptic number.

It is an amenable number.

3646450044 is an abundant number, since it is smaller than the sum of its proper divisors (5570965436).

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

3646450044 is a wasteful number, since it uses less digits than its factorization.

3646450044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101290289 (or 101290284 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 36.

The square root of 3646450044 is about 60385.8430760058. The cubic root of 3646450044 is about 1539.1824023492.

The spelling of 3646450044 in words is "three billion, six hundred forty-six million, four hundred fifty thousand, forty-four".