1200445452 has 18 divisors (see below), whose sum is σ = 3034459428. Its totient is φ = 400148472.

The previous prime is 1200445423. The next prime is 1200445481. The reversal of 1200445452 is 2545440021.

1200445452 is a `hidden beast` number, since 1 + 200 + 4 + 4 + 5 + 452 = 666.

It is an interprime number because it is at equal distance from previous prime (1200445423) and next prime (1200445481).

It is a tau number, because it is divible by the number of its divisors (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 16672818 + ... + 16672889.

Almost surely, 2^1200445452 is an apocalyptic number.

1200445452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1200445452 is an abundant number, since it is smaller than the sum of its proper divisors (1834013976).

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

1200445452 is a wasteful number, since it uses less digits than its factorization.

1200445452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33345717 (or 33345712 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 27.

The square root of 1200445452 is about 34647.4451006131. The cubic root of 1200445452 is about 1062.7900427450.

Adding to 1200445452 its reverse (2545440021), we get a palindrome (3745885473).

The spelling of 1200445452 in words is "one billion, two hundred million, four hundred forty-five thousand, four hundred fifty-two".