120004540 has 24 divisors (see below), whose sum is σ = 258157872. Its totient is φ = 46830720.

The previous prime is 120004537. The next prime is 120004541. The reversal of 120004540 is 45400021.

It is a super-2 number, since 2×120004540² = 28802179241223200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120004541) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 72354 + ... + 73993.

It is an arithmetic number, because the mean of its divisors is an integer number (10756578).

Almost surely, 2^120004540 is an apocalyptic number.

120004540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120004540 is an abundant number, since it is smaller than the sum of its proper divisors (138153332).

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

120004540 is a wasteful number, since it uses less digits than its factorization.

120004540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146397 (or 146395 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 120004540 is about 10954.6583698443. The cubic root of 120004540 is about 493.2486351225.

Adding to 120004540 its reverse (45400021), we get a palindrome (165404561).

The spelling of 120004540 in words is "one hundred twenty million, four thousand, five hundred forty".