544393916 has 24 divisors (see below), whose sum is σ = 1075137840. Its totient is φ = 238918400.

The previous prime is 544393901. The next prime is 544393919. The reversal of 544393916 is 619393445.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (544393919) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 212045 + ... + 214596.

It is an arithmetic number, because the mean of its divisors is an integer number (44797410).

Almost surely, 2^544393916 is an apocalyptic number.

It is an amenable number.

544393916 is a deficient number, since it is larger than the sum of its proper divisors (530743924).

544393916 is a wasteful number, since it uses less digits than its factorization.

544393916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 426685 (or 426683 counting only the distinct ones).

The product of its digits is 349920, while the sum is 44.

The square root of 544393916 is about 23332.2505558294. The cubic root of 544393916 is about 816.5280107420.

The spelling of 544393916 in words is "five hundred forty-four million, three hundred ninety-three thousand, nine hundred sixteen".