5421428 has 6 divisors (see below), whose sum is σ = 9487506. Its totient is φ = 2710712.

The previous prime is 5421421. The next prime is 5421433. The reversal of 5421428 is 8241245.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 3888784 + 1532644 = 1972^2 + 1238^2 .

It is a junction number, because it is equal to n+sod(n) for n = 5421397 and 5421406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5421421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 677675 + ... + 677682.

It is an arithmetic number, because the mean of its divisors is an integer number (1581251).

Almost surely, 2^5421428 is an apocalyptic number.

It is an amenable number.

5421428 is a deficient number, since it is larger than the sum of its proper divisors (4066078).

5421428 is a wasteful number, since it uses less digits than its factorization.

5421428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1355361 (or 1355359 counting only the distinct ones).

The product of its digits is 2560, while the sum is 26.

The square root of 5421428 is about 2328.3960144271. The cubic root of 5421428 is about 175.6728167313.

The spelling of 5421428 in words is "five million, four hundred twenty-one thousand, four hundred twenty-eight".