5403420644 has 24 divisors (see below), whose sum is σ = 9522779448. Its totient is φ = 2682650880.

The previous prime is 5403420643. The next prime is 5403420667. The reversal of 5403420644 is 4460243045.

It can be written as a sum of positive squares in 4 ways, for example, as 173238244 + 5230182400 = 13162^2 + 72320^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 5403420644.

It is not an unprimeable number, because it can be changed into a prime (5403420643) 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, 1581482 + ... + 1584894.

It is an arithmetic number, because the mean of its divisors is an integer number (396782477).

Almost surely, 2^5403420644 is an apocalyptic number.

It is an amenable number.

5403420644 is a deficient number, since it is larger than the sum of its proper divisors (4119358804).

5403420644 is a wasteful number, since it uses less digits than its factorization.

5403420644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6095 (or 6093 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 32.

The square root of 5403420644 is about 73507.9631332552. The cubic root of 5403420644 is about 1754.7810100588.

Adding to 5403420644 its reverse (4460243045), we get a palindrome (9863663689).

The spelling of 5403420644 in words is "five billion, four hundred three million, four hundred twenty thousand, six hundred forty-four".