5456642 has 4 divisors (see below), whose sum is σ = 8184966. Its totient is φ = 2728320.

The previous prime is 5456603. The next prime is 5456663. The reversal of 5456642 is 2466545.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 4414201 + 1042441 = 2101^2 + 1021^2 .

It is a d-powerful number, because it can be written as 5 + 4³ + 5³ + 6⁸ + 6⁸ + 4³ + 2²¹ .

It is a junction number, because it is equal to n+sod(n) for n = 5456599 and 5456608.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1364159 + ... + 1364162.

Almost surely, 2^5456642 is an apocalyptic number.

5456642 is a deficient number, since it is larger than the sum of its proper divisors (2728324).

5456642 is a wasteful number, since it uses less digits than its factorization.

5456642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2728323.

The product of its digits is 28800, while the sum is 32.

The square root of 5456642 is about 2335.9456329290. The cubic root of 5456642 is about 176.0523475486.

The spelling of 5456642 in words is "five million, four hundred fifty-six thousand, six hundred forty-two".