1118398354 has 4 divisors (see below), whose sum is σ = 1677597534. Its totient is φ = 559199176.

The previous prime is 1118398343. The next prime is 1118398361. The reversal of 1118398354 is 4538938111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4538938111 = 37 ⋅122674003.

It can be written as a sum of positive squares in only one way, i.e., 1103767729 + 14630625 = 33223^2 + 3825^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1118398354.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 279599587 + ... + 279599590.

Almost surely, 2^1118398354 is an apocalyptic number.

1118398354 is a deficient number, since it is larger than the sum of its proper divisors (559199180).

1118398354 is an equidigital number, since it uses as much as digits as its factorization.

1118398354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 559199179.

The product of its digits is 103680, while the sum is 43.

The square root of 1118398354 is about 33442.4633363034. The cubic root of 1118398354 is about 1038.0035522220.

The spelling of 1118398354 in words is "one billion, one hundred eighteen million, three hundred ninety-eight thousand, three hundred fifty-four".