3440001636 has 120 divisors (see below), whose sum is σ = 9218585376. Its totient is φ = 1118240640.

The previous prime is 3440001613. The next prime is 3440001673. The reversal of 3440001636 is 6361000443.

It is a super-2 number, since 2×3440001636² = 23667222511365352992, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2322016 + ... + 2323496.

Almost surely, 2^3440001636 is an apocalyptic number.

3440001636 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3440001636, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4609292688).

3440001636 is an abundant number, since it is smaller than the sum of its proper divisors (5778583740).

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

3440001636 is a wasteful number, since it uses less digits than its factorization.

3440001636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1671 (or 1660 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 3440001636 is about 58651.5271412433. The cubic root of 3440001636 is about 1509.5687021650.

The spelling of 3440001636 in words is "three billion, four hundred forty million, one thousand, six hundred thirty-six".