1282421160 has 160 divisors (see below), whose sum is σ = 4325551560. Its totient is φ = 340775424.

The previous prime is 1282421123. The next prime is 1282421191. The reversal of 1282421160 is 611242821.

1282421160 is a `hidden beast` number, since 1 + 2 + 82 + 421 + 160 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1243408644 + 39012516 = 35262^2 + 6246^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1285782 + ... + 1286778.

Almost surely, 2^1282421160 is an apocalyptic number.

1282421160 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 1282421160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2162775780).

1282421160 is an abundant number, since it is smaller than the sum of its proper divisors (3043130400).

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

1282421160 is a wasteful number, since it uses less digits than its factorization.

1282421160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1417 (or 1404 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 1282421160 is about 35810.9083939517. The cubic root of 1282421160 is about 1086.4512028845.

Adding to 1282421160 its reverse (611242821), we get a palindrome (1893663981).

The spelling of 1282421160 in words is "one billion, two hundred eighty-two million, four hundred twenty-one thousand, one hundred sixty".