45521120 has 24 divisors (see below), whose sum is σ = 107544024. Its totient is φ = 18208384.

The previous prime is 45521107. The next prime is 45521129. The reversal of 45521120 is 2112554.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 45521092 and 45521101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45521129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 142094 + ... + 142413.

It is an arithmetic number, because the mean of its divisors is an integer number (4481001).

Almost surely, 2^45521120 is an apocalyptic number.

45521120 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

45521120 is an abundant number, since it is smaller than the sum of its proper divisors (62022904).

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

45521120 is a wasteful number, since it uses less digits than its factorization.

45521120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284522 (or 284514 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 45521120 is about 6746.9341185460. The cubic root of 45521120 is about 357.0570777609.

Adding to 45521120 its reverse (2112554), we get a palindrome (47633674).

The spelling of 45521120 in words is "forty-five million, five hundred twenty-one thousand, one hundred twenty".