120344040 has 48 divisors (see below), whose sum is σ = 391119300. Its totient is φ = 32091648.

The previous prime is 120344023. The next prime is 120344047. The reversal of 120344040 is 40443021.

It can be written as a sum of positive squares in 2 ways, for example, as 100040004 + 20304036 = 10002^2 + 4506^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (120344047) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 166785 + ... + 167504.

Almost surely, 2^120344040 is an apocalyptic number.

120344040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120344040 is an abundant number, since it is smaller than the sum of its proper divisors (270775260).

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

120344040 is a wasteful number, since it uses less digits than its factorization.

120344040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334306 (or 334299 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 120344040 is about 10970.1431166599. The cubic root of 120344040 is about 493.7133404390.

Adding to 120344040 its reverse (40443021), we get a palindrome (160787061).

The spelling of 120344040 in words is "one hundred twenty million, three hundred forty-four thousand, forty".