120973640 has 16 divisors (see below), whose sum is σ = 272190780. Its totient is φ = 48389440.

The previous prime is 120973639. The next prime is 120973651. The reversal of 120973640 is 46379021.

It can be written as a sum of positive squares in 2 ways, for example, as 117202276 + 3771364 = 10826^2 + 1942^2 .

It is a junction number, because it is equal to n+sod(n) for n = 120973597 and 120973606.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1512131 + ... + 1512210.

Almost surely, 2^120973640 is an apocalyptic number.

120973640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120973640 is an abundant number, since it is smaller than the sum of its proper divisors (151217140).

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

120973640 is a wasteful number, since it uses less digits than its factorization.

120973640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3024352 (or 3024348 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 120973640 is about 10998.8017529184. The cubic root of 120973640 is about 494.5728246737.

The spelling of 120973640 in words is "one hundred twenty million, nine hundred seventy-three thousand, six hundred forty".