5405122044 has 36 divisors (see below), whose sum is σ = 15614797744. Its totient is φ = 1544320512.

The previous prime is 5405122043. The next prime is 5405122057. The reversal of 5405122044 is 4402215045.

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 5405121999 and 5405122017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5405122043) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10724197 + ... + 10724700.

Almost surely, 2^5405122044 is an apocalyptic number.

It is an amenable number.

5405122044 is an abundant number, since it is smaller than the sum of its proper divisors (10209675700).

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

5405122044 is a wasteful number, since it uses less digits than its factorization.

5405122044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21448914 (or 21448909 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 27.

The square root of 5405122044 is about 73519.5351182256. The cubic root of 5405122044 is about 1754.9651693966.

Adding to 5405122044 its reverse (4402215045), we get a palindrome (9807337089).

It can be divided in two parts, 5405 and 122044, that added together give a square (127449 = 357²).

The spelling of 5405122044 in words is "five billion, four hundred five million, one hundred twenty-two thousand, forty-four".