544400400 has 60 divisors (see below), whose sum is σ = 1743899792. Its totient is φ = 145173120.

The previous prime is 544400399. The next prime is 544400411. The reversal of 544400400 is 4004445.

It is a tau number, because it is divible by the number of its divisors (60).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 225634 + ... + 228033.

Almost surely, 2^544400400 is an apocalyptic number.

544400400 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

544400400 is an abundant number, since it is smaller than the sum of its proper divisors (1199499392).

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

544400400 is a wasteful number, since it uses less digits than its factorization.

544400400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 453688 (or 453677 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 21.

The square root of 544400400 is about 23332.3895047207. The cubic root of 544400400 is about 816.5312524795.

Adding to 544400400 its reverse (4004445), we get a palindrome (548404845).

The spelling of 544400400 in words is "five hundred forty-four million, four hundred thousand, four hundred".