1282241980 has 48 divisors (see below), whose sum is σ = 2876791680. Its totient is φ = 478640448.

The previous prime is 1282241971. The next prime is 1282241981. The reversal of 1282241980 is 891422821.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1282241981) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 279 + ... + 50641.

It is an arithmetic number, because the mean of its divisors is an integer number (59933160).

Almost surely, 2^1282241980 is an apocalyptic number.

1282241980 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 1282241980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1438395840).

1282241980 is an abundant number, since it is smaller than the sum of its proper divisors (1594549700).

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

1282241980 is a wasteful number, since it uses less digits than its factorization.

1282241980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50458 (or 50456 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 37.

The square root of 1282241980 is about 35808.4065548860. The cubic root of 1282241980 is about 1086.4006008410.

The spelling of 1282241980 in words is "one billion, two hundred eighty-two million, two hundred forty-one thousand, nine hundred eighty".