45344420 has 48 divisors (see below), whose sum is σ = 105235200. Its totient is φ = 16273920.

The previous prime is 45344407. The next prime is 45344443. The reversal of 45344420 is 2444354.

It is a super-2 number, since 2×45344420² = 4112232850272800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 45344420.

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, 16076 + ... + 18684.

It is an arithmetic number, because the mean of its divisors is an integer number (2192400).

Almost surely, 2^45344420 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45344420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52617600).

45344420 is an abundant number, since it is smaller than the sum of its proper divisors (59890780).

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

45344420 is a wasteful number, since it uses less digits than its factorization.

45344420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2708 (or 2706 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 26.

The square root of 45344420 is about 6733.8265495927. The cubic root of 45344420 is about 356.5944807863.

Adding to 45344420 its reverse (2444354), we get a palindrome (47788774).

The spelling of 45344420 in words is "forty-five million, three hundred forty-four thousand, four hundred twenty".