1601424 has 80 divisors (see below), whose sum is σ = 5029440. Its totient is φ = 483840.

The previous prime is 1601423. The next prime is 1601441. The reversal of 1601424 is 4241061.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1601397 and 1601406.

It is not an unprimeable number, because it can be changed into a prime (1601423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4584 + ... + 4920.

It is an arithmetic number, because the mean of its divisors is an integer number (62868).

2^1601424 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 1601424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2514720).

1601424 is an abundant number, since it is smaller than the sum of its proper divisors (3428016).

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

1601424 is a wasteful number, since it uses less digits than its factorization.

1601424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365 (or 353 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 1601424 is about 1265.4738243046. The cubic root of 1601424 is about 116.9953975836.

Adding to 1601424 its reverse (4241061), we get a palindrome (5842485).

It can be divided in two parts, 1601 and 424, that added together give a square (2025 = 45²).

The spelling of 1601424 in words is "one million, six hundred one thousand, four hundred twenty-four".