120732240 has 80 divisors (see below), whose sum is σ = 375350976. Its totient is φ = 32102400.

The previous prime is 120732239. The next prime is 120732247. The reversal of 120732240 is 42237021.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120732247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 136600 + ... + 137480.

Almost surely, 2^120732240 is an apocalyptic number.

120732240 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 120732240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (187675488).

120732240 is an abundant number, since it is smaller than the sum of its proper divisors (254618736).

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

120732240 is a wasteful number, since it uses less digits than its factorization.

120732240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1468 (or 1462 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 120732240 is about 10987.8223502203. The cubic root of 120732240 is about 494.2436362068.

Adding to 120732240 its reverse (42237021), we get a palindrome (162969261).

The spelling of 120732240 in words is "one hundred twenty million, seven hundred thirty-two thousand, two hundred forty".