120623638 has 16 divisors (see below), whose sum is σ = 189197280. Its totient is φ = 57677928.

The previous prime is 120623623. The next prime is 120623639. The reversal of 120623638 is 836326021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120623639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21856 + ... + 26812.

It is an arithmetic number, because the mean of its divisors is an integer number (11824830).

Almost surely, 2^120623638 is an apocalyptic number.

120623638 is a deficient number, since it is larger than the sum of its proper divisors (68573642).

120623638 is an frugal number, since it uses more digits than its factorization.

120623638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5028 (or 4982 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 120623638 is about 10982.8793128214. The cubic root of 120623638 is about 494.0953964609.

Adding to 120623638 its reverse (836326021), we get a palindrome (956949659).

The spelling of 120623638 in words is "one hundred twenty million, six hundred twenty-three thousand, six hundred thirty-eight".