3654681044 has 24 divisors (see below), whose sum is σ = 7429191168. Its totient is φ = 1540614240.

The previous prime is 3654681013. The next prime is 3654681049. The reversal of 3654681044 is 4401864563.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 3654680992 and 3654681010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3654681049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1068164 + ... + 1071579.

It is an arithmetic number, because the mean of its divisors is an integer number (309549632).

Almost surely, 2^3654681044 is an apocalyptic number.

It is an amenable number.

3654681044 is an abundant number, since it is smaller than the sum of its proper divisors (3774510124).

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

3654681044 is a wasteful number, since it uses less digits than its factorization.

3654681044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2139815 (or 2139813 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 41.

The square root of 3654681044 is about 60453.9580507348. The cubic root of 3654681044 is about 1540.3396456684.

The spelling of 3654681044 in words is "three billion, six hundred fifty-four million, six hundred eighty-one thousand, forty-four".