4545400 has 24 divisors (see below), whose sum is σ = 10568520. Its totient is φ = 1818080.

The previous prime is 4545397. The next prime is 4545403. The reversal of 4545400 is 45454.

It is an interprime number because it is at equal distance from previous prime (4545397) and next prime (4545403).

It is a super-2 number, since 2×4545400² = 41321322320000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4545403) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11164 + ... + 11563.

It is an arithmetic number, because the mean of its divisors is an integer number (440355).

Almost surely, 2^4545400 is an apocalyptic number.

4545400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4545400 is an abundant number, since it is smaller than the sum of its proper divisors (6023120).

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

4545400 is a wasteful number, since it uses less digits than its factorization.

4545400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22743 (or 22734 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 22.

The square root of 4545400 is about 2131.9943714747. The cubic root of 4545400 is about 165.6497186318.

Multiplying 4545400 by its reverse (45454), we get a square (206606611600 = 454540²).

4545400 divided by its reverse (45454) gives a square (100 = 10²).

The spelling of 4545400 in words is "four million, five hundred forty-five thousand, four hundred".