4001052636 has 36 divisors (see below), whose sum is σ = 11558597232. Its totient is φ = 1143157824.

The previous prime is 4001052611. The next prime is 4001052641. The reversal of 4001052636 is 6362501004.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7938345 + ... + 7938848.

Almost surely, 2^4001052636 is an apocalyptic number.

It is an amenable number.

4001052636 is an abundant number, since it is smaller than the sum of its proper divisors (7557544596).

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

4001052636 is a wasteful number, since it uses less digits than its factorization.

4001052636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15877210 (or 15877205 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 4001052636 is about 63253.8744742170. The cubic root of 4001052636 is about 1587.5402860465.

The spelling of 4001052636 in words is "four billion, one million, fifty-two thousand, six hundred thirty-six".