120019560 has 128 divisors (see below), whose sum is σ = 372314880. Its totient is φ = 30937088.

The previous prime is 120019553. The next prime is 120019567. The reversal of 120019560 is 65910021.

It is an interprime number because it is at equal distance from previous prime (120019553) and next prime (120019567).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 120019560.

It is not an unprimeable number, because it can be changed into a prime (120019567) 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, 718597 + ... + 718763.

It is an arithmetic number, because the mean of its divisors is an integer number (2908710).

Almost surely, 2^120019560 is an apocalyptic number.

120019560 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 120019560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (186157440).

120019560 is an abundant number, since it is smaller than the sum of its proper divisors (252295320).

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

120019560 is a wasteful number, since it uses less digits than its factorization.

120019560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347 (or 343 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 24.

The square root of 120019560 is about 10955.3439014939. The cubic root of 120019560 is about 493.2692129147.

Adding to 120019560 its reverse (65910021), we get a palindrome (185929581).

The spelling of 120019560 in words is "one hundred twenty million, nineteen thousand, five hundred sixty".