120742340 has 24 divisors (see below), whose sum is σ = 266904960. Its totient is φ = 45754848.

The previous prime is 120742339. The next prime is 120742351. The reversal of 120742340 is 43247021.

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, 158492 + ... + 159251.

It is an arithmetic number, because the mean of its divisors is an integer number (11121040).

Almost surely, 2^120742340 is an apocalyptic number.

120742340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120742340 is an abundant number, since it is smaller than the sum of its proper divisors (146162620).

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

120742340 is a wasteful number, since it uses less digits than its factorization.

120742340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317771 (or 317769 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 120742340 is about 10988.2819403217. The cubic root of 120742340 is about 494.2574180034.

Adding to 120742340 its reverse (43247021), we get a palindrome (163989361).

The spelling of 120742340 in words is "one hundred twenty million, seven hundred forty-two thousand, three hundred forty".