303142986 has 112 divisors (see below), whose sum is σ = 742890240. Its totient is φ = 92378880.

The previous prime is 303142981. The next prime is 303143023. The reversal of 303142986 is 689241303.

It is a self number, because there is not a number n which added to its sum of digits gives 303142986.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (303142981) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 858586 + ... + 858938.

Almost surely, 2^303142986 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 303142986, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (371445120).

303142986 is an abundant number, since it is smaller than the sum of its proper divisors (439747254).

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

303142986 is a wasteful number, since it uses less digits than its factorization.

303142986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423 (or 408 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 303142986 is about 17411.0018666359. The cubic root of 303142986 is about 671.7626314072.

The spelling of 303142986 in words is "three hundred three million, one hundred forty-two thousand, nine hundred eighty-six".