302020247 has 4 divisors (see below), whose sum is σ = 302487696. Its totient is φ = 301552800.

The previous prime is 302020241. The next prime is 302020319. The reversal of 302020247 is 742020203.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 302020247 - 2²² = 297825943 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (302020241) 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, 232754 + ... + 234047.

It is an arithmetic number, because the mean of its divisors is an integer number (75621924).

Almost surely, 2^302020247 is an apocalyptic number.

302020247 is a deficient number, since it is larger than the sum of its proper divisors (467449).

302020247 is an equidigital number, since it uses as much as digits as its factorization.

302020247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 467448.

The product of its (nonzero) digits is 672, while the sum is 20.

The square root of 302020247 is about 17378.7297291833. The cubic root of 302020247 is about 670.9322783193.

The spelling of 302020247 in words is "three hundred two million, twenty thousand, two hundred forty-seven".