45106820 has 24 divisors (see below), whose sum is σ = 103336128. Its totient is φ = 16402400.

The previous prime is 45106801. The next prime is 45106823. The reversal of 45106820 is 2860154.

It is a self number, because there is not a number n which added to its sum of digits gives 45106820.

It is not an unprimeable number, because it can be changed into a prime (45106823) 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, 102296 + ... + 102735.

It is an arithmetic number, because the mean of its divisors is an integer number (4305672).

Almost surely, 2^45106820 is an apocalyptic number.

It is an amenable number.

45106820 is an abundant number, since it is smaller than the sum of its proper divisors (58229308).

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

45106820 is a wasteful number, since it uses less digits than its factorization.

45106820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205051 (or 205049 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 45106820 is about 6716.1611058699. The cubic root of 45106820 is about 355.9705505244.

Adding to 45106820 its reverse (2860154), we get a palindrome (47966974).

The spelling of 45106820 in words is "forty-five million, one hundred six thousand, eight hundred twenty".