45811998 has 48 divisors (see below), whose sum is σ = 104232960. Its totient is φ = 14514192.

The previous prime is 45811993. The next prime is 45812003. The reversal of 45811998 is 89911854.

45811998 is a `hidden beast` number, since 458 + 1 + 199 + 8 = 666.

45811998 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (45811993) and next prime (45812003).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45811993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 98715 + ... + 99177.

It is an arithmetic number, because the mean of its divisors is an integer number (2171520).

Almost surely, 2^45811998 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45811998, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52116480).

45811998 is an abundant number, since it is smaller than the sum of its proper divisors (58420962).

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

45811998 is a wasteful number, since it uses less digits than its factorization.

45811998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 733 (or 730 counting only the distinct ones).

The product of its digits is 103680, while the sum is 45.

The square root of 45811998 is about 6768.4561016527. The cubic root of 45811998 is about 357.8159900361.

The spelling of 45811998 in words is "forty-five million, eight hundred eleven thousand, nine hundred ninety-eight".