5478642 has 36 divisors (see below), whose sum is σ = 12860874. Its totient is φ = 1684800.

The previous prime is 5478637. The next prime is 5478643. The reversal of 5478642 is 2468745.

5478642 is a `hidden beast` number, since 5 + 4 + 7 + 8 + 642 = 666.

5478642 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 1640961 + 3837681 = 1281^2 + 1959^2 .

It is a super-3 number, since 3×5478642³ (a number of 21 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 5478597 and 5478606.

It is not an unprimeable number, because it can be changed into a prime (5478643) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2142 + ... + 3942.

Almost surely, 2^5478642 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5478642, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6430437).

5478642 is an abundant number, since it is smaller than the sum of its proper divisors (7382232).

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

5478642 is a wasteful number, since it uses less digits than its factorization.

5478642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1835 (or 1819 counting only the distinct ones).

The product of its digits is 53760, while the sum is 36.

The square root of 5478642 is about 2340.6499097473. The cubic root of 5478642 is about 176.2886319422.

The spelling of 5478642 in words is "five million, four hundred seventy-eight thousand, six hundred forty-two".