4540000 has 60 divisors (see below), whose sum is σ = 11218284. Its totient is φ = 1808000.

The previous prime is 4539989. The next prime is 4540007. The reversal of 4540000 is 454.

It is a super-2 number, since 2×4540000² = 41223200000000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4540007) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 19887 + ... + 20113.

Almost surely, 2^4540000 is an apocalyptic number.

4540000 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 4540000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5609142).

4540000 is an abundant number, since it is smaller than the sum of its proper divisors (6678284).

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

4540000 is an equidigital number, since it uses as much as digits as its factorization.

4540000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257 (or 234 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 13.

The square root of 4540000 is about 2130.7275752663. The cubic root of 4540000 is about 165.5840945617.

Adding to 4540000 its reverse (454), we get a palindrome (4540454).

Multiplying 4540000 by its reverse (454), we get a square (2061160000 = 45400²).

4540000 divided by its reverse (454) gives a 4-th power (10000 = 10⁴).

The spelling of 4540000 in words is "four million, five hundred forty thousand".