1921532 has 6 divisors (see below), whose sum is σ = 3362688. Its totient is φ = 960764.

The previous prime is 1921531. The next prime is 1921537. The reversal of 1921532 is 2351291.

It is a junction number, because it is equal to n+sod(n) for n = 1921498 and 1921507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1921531) 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 as a sum of consecutive naturals, namely, 240188 + ... + 240195.

It is an arithmetic number, because the mean of its divisors is an integer number (560448).

2^1921532 is an apocalyptic number.

It is an amenable number.

1921532 is a deficient number, since it is larger than the sum of its proper divisors (1441156).

1921532 is a wasteful number, since it uses less digits than its factorization.

1921532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480387 (or 480385 counting only the distinct ones).

The product of its digits is 540, while the sum is 23.

The square root of 1921532 is about 1386.1933487072. The cubic root of 1921532 is about 124.3223489511.

The spelling of 1921532 in words is "one million, nine hundred twenty-one thousand, five hundred thirty-two".