3620128464 has 240 divisors, whose sum is σ = 11014086720. Its totient is φ = 1149603840.

The previous prime is 3620128453. The next prime is 3620128513. The reversal of 3620128464 is 4648210263.

3620128464 is a `hidden beast` number, since 3 + 620 + 1 + 28 + 4 + 6 + 4 = 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 pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10936779 + ... + 10937109.

It is an arithmetic number, because the mean of its divisors is an integer number (45892028).

Almost surely, 2^3620128464 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 3620128464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5507043360).

3620128464 is an abundant number, since it is smaller than the sum of its proper divisors (7393958256).

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

3620128464 is a wasteful number, since it uses less digits than its factorization.

3620128464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480 (or 462 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 36.

The square root of 3620128464 is about 60167.5033884571. The cubic root of 3620128464 is about 1535.4699709320.

The spelling of 3620128464 in words is "three billion, six hundred twenty million, one hundred twenty-eight thousand, four hundred sixty-four".