120405872 has 10 divisors (see below), whose sum is σ = 233286408. Its totient is φ = 60202928.

The previous prime is 120405853. The next prime is 120405893. The reversal of 120405872 is 278504021.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3762668 + ... + 3762699.

Almost surely, 2^120405872 is an apocalyptic number.

It is an amenable number.

120405872 is a deficient number, since it is larger than the sum of its proper divisors (112880536).

120405872 is an equidigital number, since it uses as much as digits as its factorization.

120405872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7525375 (or 7525369 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 29.

The square root of 120405872 is about 10972.9609495341. The cubic root of 120405872 is about 493.7978815500.

Adding to 120405872 its reverse (278504021), we get a palindrome (398909893).

The spelling of 120405872 in words is "one hundred twenty million, four hundred five thousand, eight hundred seventy-two".