1201442560 has 72 divisors (see below), whose sum is σ = 2887068240. Its totient is φ = 479035392.

The previous prime is 1201442551. The next prime is 1201442587. The reversal of 1201442560 is 652441021.

It is a happy number.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 450511 + ... + 453169.

It is an arithmetic number, because the mean of its divisors is an integer number (40098170).

Almost surely, 2^1201442560 is an apocalyptic number.

1201442560 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 1201442560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1443534120).

1201442560 is an abundant number, since it is smaller than the sum of its proper divisors (1685625680).

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

1201442560 is an equidigital number, since it uses as much as digits as its factorization.

1201442560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3033 (or 3019 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 1201442560 is about 34661.8314576711. The cubic root of 1201442560 is about 1063.0842177620.

Adding to 1201442560 its reverse (652441021), we get a palindrome (1853883581).

The spelling of 1201442560 in words is "one billion, two hundred one million, four hundred forty-two thousand, five hundred sixty".