1620098688 has 384 divisors, whose sum is σ = 5223052800. Its totient is φ = 441262080.

The previous prime is 1620098677. The next prime is 1620098729. The reversal of 1620098688 is 8868900261.

It is a tau number, because it is divible by the number of its divisors (384).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 52261233 + ... + 52261263.

It is an arithmetic number, because the mean of its divisors is an integer number (13601700).

Almost surely, 2^1620098688 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 1620098688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2611526400).

1620098688 is an abundant number, since it is smaller than the sum of its proper divisors (3602954112).

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

1620098688 is a wasteful number, since it uses less digits than its factorization.

1620098688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128 (or 97 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 48.

The square root of 1620098688 is about 40250.4495378623. The cubic root of 1620098688 is about 1174.4841406601.

The spelling of 1620098688 in words is "one billion, six hundred twenty million, ninety-eight thousand, six hundred eighty-eight".