5449428 has 72 divisors (see below), whose sum is σ = 15025920. Its totient is φ = 1658880.

The previous prime is 5449399. The next prime is 5449429. The reversal of 5449428 is 8249445.

5449428 is a `hidden beast` number, since 544 + 94 + 28 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 5449392 and 5449401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5449429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21076 + ... + 21332.

Almost surely, 2^5449428 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5449428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7512960).

5449428 is an abundant number, since it is smaller than the sum of its proper divisors (9576492).

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

5449428 is a wasteful number, since it uses less digits than its factorization.

5449428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317 (or 312 counting only the distinct ones).

The product of its digits is 46080, while the sum is 36.

The square root of 5449428 is about 2334.4009938312. The cubic root of 5449428 is about 175.9747294985.

The spelling of 5449428 in words is "five million, four hundred forty-nine thousand, four hundred twenty-eight".