1098242278 has 8 divisors (see below), whose sum is σ = 1882701072. Its totient is φ = 470675256.

The previous prime is 1098242261. The next prime is 1098242287. The reversal of 1098242278 is 8722428901.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1098242278² = 2412272202373258568, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39222925 + ... + 39222952.

It is an arithmetic number, because the mean of its divisors is an integer number (235337634).

Almost surely, 2^1098242278 is an apocalyptic number.

1098242278 is a deficient number, since it is larger than the sum of its proper divisors (784458794).

1098242278 is an equidigital number, since it uses as much as digits as its factorization.

1098242278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78445886.

The product of its (nonzero) digits is 129024, while the sum is 43.

The square root of 1098242278 is about 33139.7386531638. The cubic root of 1098242278 is about 1031.7299855205.

The spelling of 1098242278 in words is "one billion, ninety-eight million, two hundred forty-two thousand, two hundred seventy-eight".