544619900400 has 120 divisors (see below), whose sum is σ = 1751550643584. Its totient is φ = 144653280000.

The previous prime is 544619900399. The next prime is 544619900431. The reversal of 544619900400 is 4009916445.

It is a tau number, because it is divible by the number of its divisors (120).

It is a super-2 number, since 2×544619900400² (a number of 24 digits) 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 23 ways as a sum of consecutive naturals, for example, 602884 + ... + 1205283.

Almost surely, 2^544619900400 is an apocalyptic number.

544619900400 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

544619900400 is an abundant number, since it is smaller than the sum of its proper divisors (1206930743184).

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

544619900400 is a wasteful number, since it uses less digits than its factorization.

544619900400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1808439 (or 1808428 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 42.

The spelling of 544619900400 in words is "five hundred forty-four billion, six hundred nineteen million, nine hundred thousand, four hundred".