78112298 has 16 divisors (see below), whose sum is σ = 130939200. Its totient is φ = 34639200.

The previous prime is 78112271. The next prime is 78112303. The reversal of 78112298 is 89221187.

It is a super-2 number, since 2×78112298² = 12203062197681608, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42398 + ... + 44201.

It is an arithmetic number, because the mean of its divisors is an integer number (8183700).

Almost surely, 2^78112298 is an apocalyptic number.

78112298 is a deficient number, since it is larger than the sum of its proper divisors (52826902).

78112298 is a wasteful number, since it uses less digits than its factorization.

78112298 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86653.

The product of its digits is 16128, while the sum is 38.

The square root of 78112298 is about 8838.1162019969. The cubic root of 78112298 is about 427.4708172914.

Subtracting 78112298 from its reverse (89221187), we obtain a square (11108889 = 3333²).

The spelling of 78112298 in words is "seventy-eight million, one hundred twelve thousand, two hundred ninety-eight".