120520340 has 12 divisors (see below), whose sum is σ = 253092756. Its totient is φ = 48208128.

The previous prime is 120520321. The next prime is 120520373. The reversal of 120520340 is 43025021.

It can be written as a sum of positive squares in 2 ways, for example, as 71436304 + 49084036 = 8452^2 + 7006^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3012989 + ... + 3013028.

It is an arithmetic number, because the mean of its divisors is an integer number (21091063).

Almost surely, 2^120520340 is an apocalyptic number.

120520340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120520340 is an abundant number, since it is smaller than the sum of its proper divisors (132572416).

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

120520340 is a wasteful number, since it uses less digits than its factorization.

120520340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6026026 (or 6026024 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 120520340 is about 10978.1756225704. The cubic root of 120520340 is about 493.9543139904.

Adding to 120520340 its reverse (43025021), we get a palindrome (163545361).

The spelling of 120520340 in words is "one hundred twenty million, five hundred twenty thousand, three hundred forty".