3654646044 has 24 divisors (see below), whose sum is σ = 9745723008. Its totient is φ = 1044184560.

The previous prime is 3654646031. The next prime is 3654646049. The reversal of 3654646044 is 4406464563.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 3654645987 and 3654646005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3654646049) 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, 21753762 + ... + 21753929.

It is an arithmetic number, because the mean of its divisors is an integer number (406071792).

Almost surely, 2^3654646044 is an apocalyptic number.

It is an amenable number.

3654646044 is an abundant number, since it is smaller than the sum of its proper divisors (6091076964).

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

3654646044 is a wasteful number, since it uses less digits than its factorization.

3654646044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43507705 (or 43507703 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 42.

The square root of 3654646044 is about 60453.6685735448. The cubic root of 3654646044 is about 1540.3347284988.

The spelling of 3654646044 in words is "three billion, six hundred fifty-four million, six hundred forty-six thousand, forty-four".