1553428 has 12 divisors (see below), whose sum is σ = 2751840. Its totient is φ = 767192.

The previous prime is 1553423. The next prime is 1553429. The reversal of 1553428 is 8243551.

It is a junction number, because it is equal to n+sod(n) for n = 1553396 and 1553405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1553423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2008 + ... + 2671.

It is an arithmetic number, because the mean of its divisors is an integer number (229320).

2^1553428 is an apocalyptic number.

It is an amenable number.

1553428 is a deficient number, since it is larger than the sum of its proper divisors (1198412).

1553428 is a wasteful number, since it uses less digits than its factorization.

1553428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4766 (or 4764 counting only the distinct ones).

The product of its digits is 4800, while the sum is 28.

The square root of 1553428 is about 1246.3659173774. The cubic root of 1553428 is about 115.8147061583.

Adding to 1553428 its reverse (8243551), we get a palindrome (9796979).

The spelling of 1553428 in words is "one million, five hundred fifty-three thousand, four hundred twenty-eight".