120440440 has 16 divisors (see below), whose sum is σ = 270991080. Its totient is φ = 48176160.

The previous prime is 120440429. The next prime is 120440447. The reversal of 120440440 is 44044021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120440447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1505466 + ... + 1505545.

Almost surely, 2^120440440 is an apocalyptic number.

120440440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120440440 is an abundant number, since it is smaller than the sum of its proper divisors (150550640).

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

120440440 is a wasteful number, since it uses less digits than its factorization.

120440440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3011022 (or 3011018 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 19.

The square root of 120440440 is about 10974.5359810791. The cubic root of 120440440 is about 493.8451327668.

Adding to 120440440 its reverse (44044021), we get a palindrome (164484461).

The spelling of 120440440 in words is "one hundred twenty million, four hundred forty thousand, four hundred forty".