544405779 has 24 divisors (see below), whose sum is σ = 823443712. Its totient is φ = 359397000.

The previous prime is 544405769. The next prime is 544405783. The reversal of 544405779 is 977504445.

It is not a de Polignac number, because 544405779 - 2⁸ = 544405523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (544405709) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14154 + ... + 35904.

Almost surely, 2^544405779 is an apocalyptic number.

544405779 is a deficient number, since it is larger than the sum of its proper divisors (279037933).

544405779 is a wasteful number, since it uses less digits than its factorization.

544405779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21869 (or 21857 counting only the distinct ones).

The product of its (nonzero) digits is 705600, while the sum is 45.

The square root of 544405779 is about 23332.5047733843. The cubic root of 544405779 is about 816.5339417423.

The spelling of 544405779 in words is "five hundred forty-four million, four hundred five thousand, seven hundred seventy-nine".