3621406488 has 128 divisors (see below), whose sum is σ = 10877137920. Its totient is φ = 982333440.

The previous prime is 3621406469. The next prime is 3621406501. The reversal of 3621406488 is 8846041263.

It is a super-2 number, since 2×3621406488² = 26229169902656988288, which contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 525948 + ... + 532788.

It is an arithmetic number, because the mean of its divisors is an integer number (84977640).

Almost surely, 2^3621406488 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 3621406488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5438568960).

3621406488 is an abundant number, since it is smaller than the sum of its proper divisors (7255731432).

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

3621406488 is a wasteful number, since it uses less digits than its factorization.

3621406488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7017 (or 7013 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 42.

The square root of 3621406488 is about 60178.1230016357. The cubic root of 3621406488 is about 1535.6506400815.

The spelling of 3621406488 in words is "three billion, six hundred twenty-one million, four hundred six thousand, four hundred eighty-eight".