120061620 has 72 divisors (see below), whose sum is σ = 416217984. Its totient is φ = 27442368.

The previous prime is 120061561. The next prime is 120061649. The reversal of 120061620 is 26160021.

It is a happy number.

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 = 120061593 and 120061602.

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, 46384 + ... + 48903.

Almost surely, 2^120061620 is an apocalyptic number.

120061620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120061620 is an abundant number, since it is smaller than the sum of its proper divisors (296156364).

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

120061620 is a wasteful number, since it uses less digits than its factorization.

120061620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95309 (or 95304 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 120061620 is about 10957.2633444670. The cubic root of 120061620 is about 493.3268270792.

The spelling of 120061620 in words is "one hundred twenty million, sixty-one thousand, six hundred twenty".