302046989 has 4 divisors (see below), whose sum is σ = 304074300. Its totient is φ = 300019680.

The previous prime is 302046967. The next prime is 302046991. The reversal of 302046989 is 989640203.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 15015625 + 287031364 = 3875^2 + 16942^2 .

It is a cyclic number.

It is not a de Polignac number, because 302046989 - 2¹⁶ = 301981453 is a prime.

It is a super-2 number, since 2×302046989² = 182464767127932242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (302046889) 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, 1013432 + ... + 1013729.

It is an arithmetic number, because the mean of its divisors is an integer number (76018575).

Almost surely, 2^302046989 is an apocalyptic number.

It is an amenable number.

302046989 is a deficient number, since it is larger than the sum of its proper divisors (2027311).

302046989 is a wasteful number, since it uses less digits than its factorization.

302046989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2027310.

The product of its (nonzero) digits is 93312, while the sum is 41.

The square root of 302046989 is about 17379.4991009522. The cubic root of 302046989 is about 670.9520800176.

The spelling of 302046989 in words is "three hundred two million, forty-six thousand, nine hundred eighty-nine".