1601797120 has 352 divisors, whose sum is σ = 5093591040. Its totient is φ = 467927040.

The previous prime is 1601797117. The next prime is 1601797121. The reversal of 1601797120 is 217971061.

It is a tau number, because it is divible by the number of its divisors (352).

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1601797121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6701961 + ... + 6702199.

Almost surely, 2^1601797120 is an apocalyptic number.

1601797120 is a gapful number since it is divisible by the number (10) 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 1601797120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2546795520).

1601797120 is an abundant number, since it is smaller than the sum of its proper divisors (3491793920).

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

1601797120 is a wasteful number, since it uses less digits than its factorization.

1601797120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299 (or 281 counting only the distinct ones).

The product of its (nonzero) digits is 5292, while the sum is 34.

The square root of 1601797120 is about 40022.4576956488. The cubic root of 1601797120 is about 1170.0448323338.

The spelling of 1601797120 in words is "one billion, six hundred one million, seven hundred ninety-seven thousand, one hundred twenty".