1105745418 has 20 divisors (see below), whose sum is σ = 2477689170.
Its totient is φ = 368581752.
The previous prime is 1105745411. The next prime is 1105745419. The reversal of 1105745418 is 8145475011.
1105745418 is a `hidden beast` number, since 1 + 105 + 7 + 4 + 541 + 8 = 666.
It can be written as a sum of positive squares in only one way, i.e., 853983729 + 251761689 = 29223^2 + 15867^2
It is not an unprimeable number, because it can be changed into a prime (1105745411) by changing a digit.
It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 3412633 + ... + 3412956.
Almost surely, 21105745418 is an apocalyptic number.
1105745418 is a gapful number since it is divisible by the number (18) formed by its first and last digit.
1105745418 is an abundant number, since it is smaller than the sum of its proper divisors (1371943752).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1105745418 is an equidigital number, since it uses as much as digits as its factorization.
1105745418 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6825603 (or 6825594 counting only the distinct ones).
The product of its (nonzero) digits is 22400, while the sum is 36.
The square root of 1105745418 is about 33252.7505328507.
The cubic root of 1105745418 is about 1034.0742320442.
The spelling of 1105745418 in words is "one billion, one hundred five million, seven hundred forty-five thousand, four hundred eighteen".