1202141440 has 72 divisors (see below), whose sum is σ = 2891262528. Its totient is φ = 478894080.

The previous prime is 1202141429. The next prime is 1202141509. The reversal of 1202141440 is 441412021.

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, 334855 + ... + 338425.

It is an arithmetic number, because the mean of its divisors is an integer number (40156424).

Almost surely, 2^1202141440 is an apocalyptic number.

1202141440 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 1202141440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1445631264).

1202141440 is an abundant number, since it is smaller than the sum of its proper divisors (1689121088).

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

1202141440 is an equidigital number, since it uses as much as digits as its factorization.

1202141440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3855 (or 3841 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 1202141440 is about 34671.9113981332. The cubic root of 1202141440 is about 1063.2903100902.

Adding to 1202141440 its reverse (441412021), we get a palindrome (1643553461).

The spelling of 1202141440 in words is "one billion, two hundred two million, one hundred forty-one thousand, four hundred forty".