1654428 has 12 divisors (see below), whose sum is σ = 3860360. Its totient is φ = 551472.

The previous prime is 1654427. The next prime is 1654441. The reversal of 1654428 is 8244561.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 1654395 and 1654404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1654427) 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, 68923 + ... + 68946.

2^1654428 is an apocalyptic number.

It is an amenable number.

1654428 is an abundant number, since it is smaller than the sum of its proper divisors (2205932).

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

1654428 is a wasteful number, since it uses less digits than its factorization.

1654428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137876 (or 137874 counting only the distinct ones).

The product of its digits is 7680, while the sum is 30.

The square root of 1654428 is about 1286.2456997013. The cubic root of 1654428 is about 118.2721860018.

Adding to 1654428 its reverse (8244561), we get a palindrome (9898989).

The spelling of 1654428 in words is "one million, six hundred fifty-four thousand, four hundred twenty-eight".