918224374 has 4 divisors (see below), whose sum is σ = 1377336564. Its totient is φ = 459112186.

The previous prime is 918224369. The next prime is 918224387. The reversal of 918224374 is 473422819.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 473422819 = 43 ⋅11009833.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 229556092 + ... + 229556095.

It is an arithmetic number, because the mean of its divisors is an integer number (344334141).

Almost surely, 2^918224374 is an apocalyptic number.

918224374 is a deficient number, since it is larger than the sum of its proper divisors (459112190).

918224374 is a wasteful number, since it uses less digits than its factorization.

918224374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 459112189.

The product of its digits is 96768, while the sum is 40.

The square root of 918224374 is about 30302.2173116094. The cubic root of 918224374 is about 971.9627152684.

The spelling of 918224374 in words is "nine hundred eighteen million, two hundred twenty-four thousand, three hundred seventy-four".