5405664 has 48 divisors (see below), whose sum is σ = 15482880. Its totient is φ = 1637760.

The previous prime is 5405641. The next prime is 5405669. The reversal of 5405664 is 4665045.

5405664 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (48).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5405669) 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, 1504 + ... + 3615.

It is an arithmetic number, because the mean of its divisors is an integer number (322560).

Almost surely, 2^5405664 is an apocalyptic number.

It is an amenable number.

5405664 is an abundant number, since it is smaller than the sum of its proper divisors (10077216).

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

5405664 is a wasteful number, since it uses less digits than its factorization.

5405664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5143 (or 5135 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 5405664 is about 2325.0083870816. The cubic root of 5405664 is about 175.5023822535.

The spelling of 5405664 in words is "five million, four hundred five thousand, six hundred sixty-four".