120217400 has 48 divisors (see below), whose sum is σ = 280227600. Its totient is φ = 47962880.

The previous prime is 120217367. The next prime is 120217439. The reversal of 120217400 is 4712021.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 148196 + ... + 149004.

It is an arithmetic number, because the mean of its divisors is an integer number (5838075).

Almost surely, 2^120217400 is an apocalyptic number.

120217400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120217400 is an abundant number, since it is smaller than the sum of its proper divisors (160010200).

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

120217400 is a wasteful number, since it uses less digits than its factorization.

120217400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1568 (or 1559 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 17.

The square root of 120217400 is about 10964.3695669199. The cubic root of 120217400 is about 493.5400987843.

Adding to 120217400 its reverse (4712021), we get a palindrome (124929421).

The spelling of 120217400 in words is "one hundred twenty million, two hundred seventeen thousand, four hundred".