4543400320 has 32 divisors (see below), whose sum is σ = 10861567920. Its totient is φ = 1817359872.

The previous prime is 4543400317. The next prime is 4543400341. The reversal of 4543400320 is 230043454.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×4543400320² = 41284972935552204800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3548892 + ... + 3550171.

Almost surely, 2^4543400320 is an apocalyptic number.

4543400320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4543400320 is an abundant number, since it is smaller than the sum of its proper divisors (6318167600).

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

4543400320 is an equidigital number, since it uses as much as digits as its factorization.

4543400320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7099082 (or 7099070 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 25.

The square root of 4543400320 is about 67404.7499809917. The cubic root of 4543400320 is about 1656.2542337236.

Adding to 4543400320 its reverse (230043454), we get a palindrome (4773443774).

The spelling of 4543400320 in words is "four billion, five hundred forty-three million, four hundred thousand, three hundred twenty".