3616626420 has 144 divisors (see below), whose sum is σ = 12291447168. Its totient is φ = 853044480.

The previous prime is 3616626407. The next prime is 3616626449. The reversal of 3616626420 is 246266163.

3616626420 is a `hidden beast` number, since 3 + 6 + 1 + 6 + 6 + 2 + 642 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

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, 48577 + ... + 97943.

It is an arithmetic number, because the mean of its divisors is an integer number (85357272).

Almost surely, 2^3616626420 is an apocalyptic number.

3616626420 is a gapful number since it is divisible by the number (30) 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 3616626420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6145723584).

3616626420 is an abundant number, since it is smaller than the sum of its proper divisors (8674820748).

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

3616626420 is a wasteful number, since it uses less digits than its factorization.

3616626420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49430 (or 49425 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 36.

The square root of 3616626420 is about 60138.3938927537. The cubic root of 3616626420 is about 1534.9746829566.

It can be divided in two parts, 3616 and 626420, that added together give a palindrome (630036).

The spelling of 3616626420 in words is "three billion, six hundred sixteen million, six hundred twenty-six thousand, four hundred twenty".