1287982038 has 16 divisors (see below), whose sum is σ = 2943959040. Its totient is φ = 367994856.

The previous prime is 1287982021. The next prime is 1287982061. The reversal of 1287982038 is 8302897821.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15333078 + ... + 15333161.

It is an arithmetic number, because the mean of its divisors is an integer number (183997440).

Almost surely, 2^1287982038 is an apocalyptic number.

1287982038 is an abundant number, since it is smaller than the sum of its proper divisors (1655977002).

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

1287982038 is a wasteful number, since it uses less digits than its factorization.

1287982038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30666251.

The product of its (nonzero) digits is 387072, while the sum is 48.

The square root of 1287982038 is about 35888.4666431989. The cubic root of 1287982038 is about 1088.0193073230.

The spelling of 1287982038 in words is "one billion, two hundred eighty-seven million, nine hundred eighty-two thousand, thirty-eight".