45321020 has 24 divisors (see below), whose sum is σ = 95428368. Its totient is φ = 18080000.

The previous prime is 45321013. The next prime is 45321037. The reversal of 45321020 is 2012354.

It is a self number, because there is not a number n which added to its sum of digits gives 45321020.

It is a congruent number.

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, 5195 + ... + 10845.

It is an arithmetic number, because the mean of its divisors is an integer number (3976182).

Almost surely, 2^45321020 is an apocalyptic number.

It is an amenable number.

45321020 is an abundant number, since it is smaller than the sum of its proper divisors (50107348).

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

45321020 is a wasteful number, since it uses less digits than its factorization.

45321020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6061 (or 6059 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 45321020 is about 6732.0888288851. The cubic root of 45321020 is about 356.5331300062.

Adding to 45321020 its reverse (2012354), we get a palindrome (47333374).

The spelling of 45321020 in words is "forty-five million, three hundred twenty-one thousand, twenty".