120435640 has 32 divisors (see below), whose sum is σ = 291826080. Its totient is φ = 44468352.

The previous prime is 120435611. The next prime is 120435641. The reversal of 120435640 is 46534021.

It is a super-3 number, since 3×120435640³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120435641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115284 + ... + 116323.

It is an arithmetic number, because the mean of its divisors is an integer number (9119565).

Almost surely, 2^120435640 is an apocalyptic number.

120435640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120435640 is an abundant number, since it is smaller than the sum of its proper divisors (171390440).

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

120435640 is a wasteful number, since it uses less digits than its factorization.

120435640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231631 (or 231627 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 120435640 is about 10974.3172908386. The cubic root of 120435640 is about 493.8385721572.

Adding to 120435640 its reverse (46534021), we get a palindrome (166969661).

The spelling of 120435640 in words is "one hundred twenty million, four hundred thirty-five thousand, six hundred forty".