120621740 has 24 divisors (see below), whose sum is σ = 258697152. Its totient is φ = 47221760.

The previous prime is 120621727. The next prime is 120621757. The reversal of 120621740 is 47126021.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63221 + ... + 65100.

It is an arithmetic number, because the mean of its divisors is an integer number (10779048).

Almost surely, 2^120621740 is an apocalyptic number.

120621740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120621740 is an abundant number, since it is smaller than the sum of its proper divisors (138075412).

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

120621740 is a wasteful number, since it uses less digits than its factorization.

120621740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128377 (or 128375 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 120621740 is about 10982.7929052678. The cubic root of 120621740 is about 494.0928049346.

Adding to 120621740 its reverse (47126021), we get a palindrome (167747761).

The spelling of 120621740 in words is "one hundred twenty million, six hundred twenty-one thousand, seven hundred forty".