45051930 has 192 divisors, whose sum is σ = 151683840. Its totient is φ = 9313920.

The previous prime is 45051911. The next prime is 45051947. The reversal of 45051930 is 3915054.

45051930 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 45051894 and 45051903.

It is an unprimeable number.

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 95 ways as a sum of consecutive naturals, for example, 228592 + ... + 228788.

It is an arithmetic number, because the mean of its divisors is an integer number (790020).

Almost surely, 2^45051930 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45051930, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75841920).

45051930 is an abundant number, since it is smaller than the sum of its proper divisors (106631910).

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

45051930 is a wasteful number, since it uses less digits than its factorization.

45051930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242 (or 225 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 45051930 is about 6712.0734501345. The cubic root of 45051930 is about 355.8260996810.

Adding to 45051930 its reverse (3915054), we get a palindrome (48966984).

The spelling of 45051930 in words is "forty-five million, fifty-one thousand, nine hundred thirty".