1394342988 has 24 divisors (see below), whose sum is σ = 3308612160. Its totient is φ = 456903120.

The previous prime is 1394342959. The next prime is 1394342993. The reversal of 1394342988 is 8892434931.

It is a self number, because there is not a number n which added to its sum of digits gives 1394342988.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 983998 + ... + 985413.

It is an arithmetic number, because the mean of its divisors is an integer number (137858840).

Almost surely, 2^1394342988 is an apocalyptic number.

It is an amenable number.

1394342988 is an abundant number, since it is smaller than the sum of its proper divisors (1914269172).

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

1394342988 is a wasteful number, since it uses less digits than its factorization.

1394342988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1969477 (or 1969475 counting only the distinct ones).

The product of its digits is 1492992, while the sum is 51.

The square root of 1394342988 is about 37340.9023458191. The cubic root of 1394342988 is about 1117.1801373729.

The spelling of 1394342988 in words is "one billion, three hundred ninety-four million, three hundred forty-two thousand, nine hundred eighty-eight".