120445400 has 24 divisors (see below), whose sum is σ = 280036020. Its totient is φ = 48178080.

The previous prime is 120445399. The next prime is 120445421. The reversal of 120445400 is 4544021.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 300914 + ... + 301313.

Almost surely, 2^120445400 is an apocalyptic number.

120445400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120445400 is an abundant number, since it is smaller than the sum of its proper divisors (159590620).

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

120445400 is a wasteful number, since it uses less digits than its factorization.

120445400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 602243 (or 602234 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 120445400 is about 10974.7619564162. The cubic root of 120445400 is about 493.8519118803.

Adding to 120445400 its reverse (4544021), we get a palindrome (124989421).

The spelling of 120445400 in words is "one hundred twenty million, four hundred forty-five thousand, four hundred".