4544553420 has 144 divisors (see below), whose sum is σ = 15088443552. Its totient is φ = 1098040320.

The previous prime is 4544553389. The next prime is 4544553421. The reversal of 4544553420 is 243554454.

4544553420 is a `hidden beast` number, since 45 + 44 + 553 + 4 + 20 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (4544553421) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 616074 + ... + 623406.

It is an arithmetic number, because the mean of its divisors is an integer number (104780858).

Almost surely, 2^4544553420 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 4544553420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7544221776).

4544553420 is an abundant number, since it is smaller than the sum of its proper divisors (10543890132).

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

4544553420 is a wasteful number, since it uses less digits than its factorization.

4544553420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7672 (or 7667 counting only the distinct ones).

The product of its (nonzero) digits is 192000, while the sum is 36.

The square root of 4544553420 is about 67413.3029898402. The cubic root of 4544553420 is about 1656.3943391568.

The spelling of 4544553420 in words is "four billion, five hundred forty-four million, five hundred fifty-three thousand, four hundred twenty".