120142620 has 72 divisors (see below), whose sum is σ = 392473536. Its totient is φ = 29572992.

The previous prime is 120142619. The next prime is 120142637. The reversal of 120142620 is 26241021.

120142620 is a `hidden beast` number, since 1 + 2 + 0 + 1 + 42 + 620 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 120142593 and 120142602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23332 + ... + 28011.

Almost surely, 2^120142620 is an apocalyptic number.

120142620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120142620 is an abundant number, since it is smaller than the sum of its proper divisors (272330916).

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

120142620 is a wasteful number, since it uses less digits than its factorization.

120142620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51371 (or 51366 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 120142620 is about 10960.9588996584. The cubic root of 120142620 is about 493.4377437071.

Adding to 120142620 its reverse (26241021), we get a palindrome (146383641).

The spelling of 120142620 in words is "one hundred twenty million, one hundred forty-two thousand, six hundred twenty".