1399282560 has 256 divisors, whose sum is σ = 5337864000. Its totient is φ = 344383488.

The previous prime is 1399282537. The next prime is 1399282561. The reversal of 1399282560 is 652829931.

1399282560 is a `hidden beast` number, since 1 + 3 + 9 + 9 + 2 + 82 + 560 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1399282561) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 221526 + ... + 227754.

Almost surely, 2^1399282560 is an apocalyptic number.

1399282560 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 1399282560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2668932000).

1399282560 is an abundant number, since it is smaller than the sum of its proper divisors (3938581440).

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

1399282560 is a wasteful number, since it uses less digits than its factorization.

1399282560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6270 (or 6252 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The square root of 1399282560 is about 37406.9854438980. The cubic root of 1399282560 is about 1118.4978160500.

The spelling of 1399282560 in words is "one billion, three hundred ninety-nine million, two hundred eighty-two thousand, five hundred sixty".