120451044 has 24 divisors (see below), whose sum is σ = 321203008. Its totient is φ = 34414560.

The previous prime is 120451031. The next prime is 120451049. The reversal of 120451044 is 440154021.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 120451044.

It is not an unprimeable number, because it can be changed into a prime (120451049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 716887 + ... + 717054.

Almost surely, 2^120451044 is an apocalyptic number.

120451044 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

120451044 is an abundant number, since it is smaller than the sum of its proper divisors (200751964).

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

120451044 is a wasteful number, since it uses less digits than its factorization.

120451044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1433955 (or 1433953 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 120451044 is about 10975.0190888217. The cubic root of 120451044 is about 493.8596256290.

The spelling of 120451044 in words is "one hundred twenty million, four hundred fifty-one thousand, forty-four".