304001022278 has 4 divisors (see below), whose sum is σ = 456001533420. Its totient is φ = 152000511138.

The previous prime is 304001022271. The next prime is 304001022307. The reversal of 304001022278 is 872220100403.

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

It is a self number, because there is not a number n which added to its sum of digits gives 304001022278.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (304001022271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76000255568 + ... + 76000255571.

It is an arithmetic number, because the mean of its divisors is an integer number (114000383355).

Almost surely, 2^304001022278 is an apocalyptic number.

304001022278 is a deficient number, since it is larger than the sum of its proper divisors (152000511142).

304001022278 is a wasteful number, since it uses less digits than its factorization.

304001022278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152000511141.

The product of its (nonzero) digits is 5376, while the sum is 29.

The spelling of 304001022278 in words is "three hundred four billion, one million, twenty-two thousand, two hundred seventy-eight".