1118858478 has 16 divisors (see below), whose sum is σ = 2238924240. Its totient is φ = 372751616.

The previous prime is 1118858473. The next prime is 1118858501. The reversal of 1118858478 is 8748588111.

It is a self number, because there is not a number n which added to its sum of digits gives 1118858478.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1118858473) 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, 38025 + ... + 60692.

It is an arithmetic number, because the mean of its divisors is an integer number (139932765).

Almost surely, 2^1118858478 is an apocalyptic number.

1118858478 is an abundant number, since it is smaller than the sum of its proper divisors (1120065762).

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

1118858478 is a wasteful number, since it uses less digits than its factorization.

1118858478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100611.

The product of its digits is 573440, while the sum is 51.

The square root of 1118858478 is about 33449.3419666217. The cubic root of 1118858478 is about 1038.1458822070.

The spelling of 1118858478 in words is "one billion, one hundred eighteen million, eight hundred fifty-eight thousand, four hundred seventy-eight".