120406408 has 8 divisors (see below), whose sum is σ = 225762030. Its totient is φ = 60203200.

The previous prime is 120406379. The next prime is 120406411. The reversal of 120406408 is 804604021.

It can be written as a sum of positive squares in only one way, i.e., 104898564 + 15507844 = 10242^2 + 3938^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7525393 + ... + 7525408.

Almost surely, 2^120406408 is an apocalyptic number.

It is an amenable number.

120406408 is a deficient number, since it is larger than the sum of its proper divisors (105355622).

120406408 is a wasteful number, since it uses less digits than its factorization.

120406408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15050807 (or 15050803 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 120406408 is about 10972.9853731790. The cubic root of 120406408 is about 493.7986142808.

The spelling of 120406408 in words is "one hundred twenty million, four hundred six thousand, four hundred eight".