298012278 has 16 divisors (see below), whose sum is σ = 631085040. Its totient is φ = 93494016.

The previous prime is 298012277. The next prime is 298012279. The reversal of 298012278 is 872210892.

It is an interprime number because it is at equal distance from previous prime (298012277) and next prime (298012279).

It is a super-2 number, since 2×298012278² = 177622635677498568, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (298012271) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1460743 + ... + 1460946.

It is an arithmetic number, because the mean of its divisors is an integer number (39442815).

Almost surely, 2^298012278 is an apocalyptic number.

298012278 is an abundant number, since it is smaller than the sum of its proper divisors (333072762).

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

298012278 is a wasteful number, since it uses less digits than its factorization.

298012278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2921711.

The product of its (nonzero) digits is 32256, while the sum is 39.

The square root of 298012278 is about 17263.0321206907. The cubic root of 298012278 is about 667.9511764070.

The spelling of 298012278 in words is "two hundred ninety-eight million, twelve thousand, two hundred seventy-eight".