45243020 has 24 divisors (see below), whose sum is σ = 95500944. Its totient is φ = 18003776.

The previous prime is 45243013. The next prime is 45243041. The reversal of 45243020 is 2034254.

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 = 45242983 and 45243001.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1802 + ... + 9681.

It is an arithmetic number, because the mean of its divisors is an integer number (3979206).

Almost surely, 2^45243020 is an apocalyptic number.

It is an amenable number.

45243020 is an abundant number, since it is smaller than the sum of its proper divisors (50257924).

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

45243020 is a wasteful number, since it uses less digits than its factorization.

45243020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11689 (or 11687 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 45243020 is about 6726.2931842137. The cubic root of 45243020 is about 356.3284747611.

Adding to 45243020 its reverse (2034254), we get a palindrome (47277274).

The spelling of 45243020 in words is "forty-five million, two hundred forty-three thousand, twenty".