45220532 has 36 divisors (see below), whose sum is σ = 96909120. Its totient is φ = 18358704.

The previous prime is 45220531. The next prime is 45220543. The reversal of 45220532 is 23502254.

It is a junction number, because it is equal to n+sod(n) for n = 45220498 and 45220507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45220531) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2348 + ... + 9795.

It is an arithmetic number, because the mean of its divisors is an integer number (2691920).

Almost surely, 2^45220532 is an apocalyptic number.

It is an amenable number.

45220532 is an abundant number, since it is smaller than the sum of its proper divisors (51688588).

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

45220532 is a wasteful number, since it uses less digits than its factorization.

45220532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12180 (or 12171 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 23.

The square root of 45220532 is about 6724.6213276288. The cubic root of 45220532 is about 356.2694274006.

Adding to 45220532 its reverse (23502254), we get a palindrome (68722786).

The spelling of 45220532 in words is "forty-five million, two hundred twenty thousand, five hundred thirty-two".