1424728 has 8 divisors (see below), whose sum is σ = 2671380. Its totient is φ = 712360.

The previous prime is 1424723. The next prime is 1424737. The reversal of 1424728 is 8274241.

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1424696 and 1424705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1424723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 89038 + ... + 89053.

2^1424728 is an apocalyptic number.

It is an amenable number.

1424728 is a deficient number, since it is larger than the sum of its proper divisors (1246652).

1424728 is a wasteful number, since it uses less digits than its factorization.

1424728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178097 (or 178093 counting only the distinct ones).

The product of its digits is 3584, while the sum is 28.

The square root of 1424728 is about 1193.6197049312. The cubic root of 1424728 is about 112.5236954203.

Adding to 1424728 its reverse (8274241), we get a palindrome (9698969).

It can be divided in two parts, 14 and 24728, that added together give a palindrome (24742).

The spelling of 1424728 in words is "one million, four hundred twenty-four thousand, seven hundred twenty-eight".