1390987482 has 8 divisors (see below), whose sum is σ = 2781974976. Its totient is φ = 463662492.

The previous prime is 1390987463. The next prime is 1390987489. The reversal of 1390987482 is 2847890931.

It is a sphenic number, since it is the product of 3 distinct primes.

1390987482 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (1390987489) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115915618 + ... + 115915629.

It is an arithmetic number, because the mean of its divisors is an integer number (347746872).

Almost surely, 2^1390987482 is an apocalyptic number.

1390987482 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1390987482 is a wasteful number, since it uses less digits than its factorization.

1390987482 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231831252.

The product of its (nonzero) digits is 870912, while the sum is 51.

The square root of 1390987482 is about 37295.9445784659. The cubic root of 1390987482 is about 1116.2832476271.

The spelling of 1390987482 in words is "one billion, three hundred ninety million, nine hundred eighty-seven thousand, four hundred eighty-two".