120489860400 has 480 divisors, whose sum is σ = 500049661440. Its totient is φ = 24083619840.

The previous prime is 120489860383. The next prime is 120489860423. The reversal of 120489860400 is 4068984021.

It is a super-2 number, since 2×120489860400² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2045764 + ... + 2103836.

It is an arithmetic number, because the mean of its divisors is an integer number (1041770128).

Almost surely, 2^120489860400 is an apocalyptic number.

120489860400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 120489860400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (250024830720).

120489860400 is an abundant number, since it is smaller than the sum of its proper divisors (379559801040).

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

120489860400 is a wasteful number, since it uses less digits than its factorization.

120489860400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58133 (or 58122 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 42.

The spelling of 120489860400 in words is "one hundred twenty billion, four hundred eighty-nine million, eight hundred sixty thousand, four hundred".