1900424 has 32 divisors (see below), whose sum is σ = 3763200. Its totient is φ = 898560.

The previous prime is 1900397. The next prime is 1900429. The reversal of 1900424 is 4240091.

1900424 is nontrivially palindromic in base 5.

It is a super-2 number, since 2×1900424² = 7223222759552, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1900396 and 1900405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1900429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19544 + ... + 19640.

It is an arithmetic number, because the mean of its divisors is an integer number (117600).

2^1900424 is an apocalyptic number.

It is an amenable number.

1900424 is a deficient number, since it is larger than the sum of its proper divisors (1862776).

1900424 is a wasteful number, since it uses less digits than its factorization.

1900424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213 (or 209 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 1900424 is about 1378.5586675945. The cubic root of 1900424 is about 123.8654454432.

The spelling of 1900424 in words is "one million, nine hundred thousand, four hundred twenty-four".