120233540 has 48 divisors (see below), whose sum is σ = 291244800. Its totient is φ = 40839552.

The previous prime is 120233513. The next prime is 120233543. The reversal of 120233540 is 45332021.

It is a happy number.

It is a super-2 number, since 2×120233540² = 28912208281863200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (120233543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11321 + ... + 19199.

It is an arithmetic number, because the mean of its divisors is an integer number (6067600).

Almost surely, 2^120233540 is an apocalyptic number.

120233540 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 120233540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (145622400).

120233540 is an abundant number, since it is smaller than the sum of its proper divisors (171011260).

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

120233540 is a wasteful number, since it uses less digits than its factorization.

120233540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8004 (or 8002 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 120233540 is about 10965.1055626474. The cubic root of 120233540 is about 493.5621848293.

Adding to 120233540 its reverse (45332021), we get a palindrome (165565561).

The spelling of 120233540 in words is "one hundred twenty million, two hundred thirty-three thousand, five hundred forty".