4402866636 has 144 divisors (see below), whose sum is σ = 13173608448. Its totient is φ = 1213315200.

The previous prime is 4402866619. The next prime is 4402866649. The reversal of 4402866636 is 6366682044.

It is a super-2 number, since 2×4402866636² = 38770469228803912992, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4402866591 and 4402866600.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2913121 + ... + 2914631.

It is an arithmetic number, because the mean of its divisors is an integer number (91483392).

Almost surely, 2^4402866636 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4402866636, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6586804224).

4402866636 is an abundant number, since it is smaller than the sum of its proper divisors (8770741812).

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

4402866636 is a wasteful number, since it uses less digits than its factorization.

4402866636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1932 (or 1927 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 45.

The square root of 4402866636 is about 66354.1003706629. The cubic root of 4402866636 is about 1638.9983269543.

The spelling of 4402866636 in words is "four billion, four hundred two million, eight hundred sixty-six thousand, six hundred thirty-six".