120644424 has 32 divisors (see below), whose sum is σ = 335124000. Its totient is φ = 40214736.

The previous prime is 120644413. The next prime is 120644431. The reversal of 120644424 is 424446021.

It is a happy number.

120644424 is a `hidden beast` number, since 12 + 0 + 644 + 4 + 2 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 279054 + ... + 279485.

It is an arithmetic number, because the mean of its divisors is an integer number (10472625).

Almost surely, 2^120644424 is an apocalyptic number.

It is an amenable number.

120644424 is an abundant number, since it is smaller than the sum of its proper divisors (214479576).

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

120644424 is a wasteful number, since it uses less digits than its factorization.

120644424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 558554 (or 558544 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

The square root of 120644424 is about 10983.8255630723. The cubic root of 120644424 is about 494.1237758544.

The spelling of 120644424 in words is "one hundred twenty million, six hundred forty-four thousand, four hundred twenty-four".