45609020 has 12 divisors (see below), whose sum is σ = 95778984. Its totient is φ = 18243600.

The previous prime is 45609017. The next prime is 45609037. The reversal of 45609020 is 2090654.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1140206 + ... + 1140245.

It is an arithmetic number, because the mean of its divisors is an integer number (7981582).

Almost surely, 2^45609020 is an apocalyptic number.

It is an amenable number.

45609020 is an abundant number, since it is smaller than the sum of its proper divisors (50169964).

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

45609020 is a wasteful number, since it uses less digits than its factorization.

45609020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2280460 (or 2280458 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 45609020 is about 6753.4450467891. The cubic root of 45609020 is about 357.2867523778.

Adding to 45609020 its reverse (2090654), we get a palindrome (47699674).

The spelling of 45609020 in words is "forty-five million, six hundred nine thousand, twenty".