545567400 has 480 divisors, whose sum is σ = 2301013440. Its totient is φ = 116951040.

The previous prime is 545567389. The next prime is 545567431. The reversal of 545567400 is 4765545.

It is a happy number.

545567400 is a `hidden beast` number, since 54 + 5 + 567 + 40 + 0 = 666.

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 119 ways as a sum of consecutive naturals, for example, 1927659 + ... + 1927941.

It is an arithmetic number, because the mean of its divisors is an integer number (4793778).

Almost surely, 2^545567400 is an apocalyptic number.

545567400 is a gapful number since it is divisible by the number (50) 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 545567400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1150506720).

545567400 is an abundant number, since it is smaller than the sum of its proper divisors (1755446040).

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

545567400 is a wasteful number, since it uses less digits than its factorization.

545567400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335 (or 317 counting only the distinct ones).

The product of its (nonzero) digits is 84000, while the sum is 36.

The square root of 545567400 is about 23357.3842713605. The cubic root of 545567400 is about 817.1142865201.

The spelling of 545567400 in words is "five hundred forty-five million, five hundred sixty-seven thousand, four hundred".