45063920 has 80 divisors (see below), whose sum is σ = 117180000. Its totient is φ = 15974400.

The previous prime is 45063919. The next prime is 45063943. The reversal of 45063920 is 2936054.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35456 + ... + 36704.

It is an arithmetic number, because the mean of its divisors is an integer number (1464750).

Almost surely, 2^45063920 is an apocalyptic number.

45063920 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45063920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58590000).

45063920 is an abundant number, since it is smaller than the sum of its proper divisors (72116080).

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

45063920 is a wasteful number, since it uses less digits than its factorization.

45063920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1314 (or 1308 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 45063920 is about 6712.9665573426. The cubic root of 45063920 is about 355.8576630829.

Adding to 45063920 its reverse (2936054), we get a palindrome (47999974).

The spelling of 45063920 in words is "forty-five million, sixty-three thousand, nine hundred twenty".