1924001 has 4 divisors (see below), whose sum is σ = 1955604. Its totient is φ = 1892400.

The previous prime is 1923991. The next prime is 1924003. The reversal of 1924001 is 1004291.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1004291 = 37 ⋅27143.

It can be written as a sum of positive squares in 2 ways, for example, as 30625 + 1893376 = 175^2 + 1376^2 .

It is a cyclic number.

It is not a de Polignac number, because 1924001 - 2¹⁴ = 1907617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1924003) 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, 15710 + ... + 15831.

It is an arithmetic number, because the mean of its divisors is an integer number (488901).

2^1924001 is an apocalyptic number.

It is an amenable number.

1924001 is a deficient number, since it is larger than the sum of its proper divisors (31603).

1924001 is an equidigital number, since it uses as much as digits as its factorization.

1924001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31602.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 1924001 is about 1387.0836312206. The cubic root of 1924001 is about 124.3755739307.

Adding to 1924001 its reverse (1004291), we get a palindrome (2928292).

The spelling of 1924001 in words is "one million, nine hundred twenty-four thousand, one".