1603424 has 24 divisors (see below), whose sum is σ = 3197880. Its totient is φ = 791296.

The previous prime is 1603421. The next prime is 1603453. The reversal of 1603424 is 4243061.

1603424 = T₃₅ + T₃₆ + ... + T₂₁₂.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1603396 and 1603405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1603421) 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, 2567 + ... + 3129.

It is an arithmetic number, because the mean of its divisors is an integer number (133245).

2^1603424 is an apocalyptic number.

It is an amenable number.

1603424 is a deficient number, since it is larger than the sum of its proper divisors (1594456).

1603424 is an equidigital number, since it uses as much as digits as its factorization.

1603424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 662 (or 654 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1603424 is about 1266.2637955813. The cubic root of 1603424 is about 117.0440820572.

Adding to 1603424 its reverse (4243061), we get a palindrome (5846485).

The spelling of 1603424 in words is "one million, six hundred three thousand, four hundred twenty-four".