120219540 has 144 divisors (see below), whose sum is σ = 396369792. Its totient is φ = 27143424.

The previous prime is 120219511. The next prime is 120219553. The reversal of 120219540 is 45912021.

It is a self number, because there is not a number n which added to its sum of digits gives 120219540.

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, 302622 + ... + 303018.

It is an arithmetic number, because the mean of its divisors is an integer number (2752568).

Almost surely, 2^120219540 is an apocalyptic number.

120219540 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 120219540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (198184896).

120219540 is an abundant number, since it is smaller than the sum of its proper divisors (276150252).

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

120219540 is a wasteful number, since it uses less digits than its factorization.

120219540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526 (or 517 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 120219540 is about 10964.4671553158. The cubic root of 120219540 is about 493.5430272831.

The spelling of 120219540 in words is "one hundred twenty million, two hundred nineteen thousand, five hundred forty".