3136988394 has 48 divisors (see below), whose sum is σ = 7084306944. Its totient is φ = 1002088800.

The previous prime is 3136988381. The next prime is 3136988399. The reversal of 3136988394 is 4938896313.

It is a self number, because there is not a number n which added to its sum of digits gives 3136988394.

It is not an unprimeable number, because it can be changed into a prime (3136988399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30184 + ... + 84764.

It is an arithmetic number, because the mean of its divisors is an integer number (147589728).

Almost surely, 2^3136988394 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3136988394, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3542153472).

3136988394 is an abundant number, since it is smaller than the sum of its proper divisors (3947318550).

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

3136988394 is a wasteful number, since it uses less digits than its factorization.

3136988394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54723 (or 54720 counting only the distinct ones).

The product of its digits is 3359232, while the sum is 54.

The square root of 3136988394 is about 56008.8242511838. The cubic root of 3136988394 is about 1463.8760448890.

The spelling of 3136988394 in words is "three billion, one hundred thirty-six million, nine hundred eighty-eight thousand, three hundred ninety-four".