4544805420 has 36 divisors (see below), whose sum is σ = 13785910320. Its totient is φ = 1211948064.

The previous prime is 4544805413. The next prime is 4544805431. The reversal of 4544805420 is 245084454.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×4544805420² = 41310512611322752800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12624280 + ... + 12624639.

Almost surely, 2^4544805420 is an apocalyptic number.

It is an amenable number.

4544805420 is an abundant number, since it is smaller than the sum of its proper divisors (9241104900).

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

4544805420 is a wasteful number, since it uses less digits than its factorization.

4544805420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25248934 (or 25248929 counting only the distinct ones).

The product of its (nonzero) digits is 102400, while the sum is 36.

The square root of 4544805420 is about 67415.1720312275. The cubic root of 4544805420 is about 1656.4249548279.

Adding to 4544805420 its reverse (245084454), we get a palindrome (4789889874).

The spelling of 4544805420 in words is "four billion, five hundred forty-four million, eight hundred five thousand, four hundred twenty".