1939441 has 4 divisors (see below), whose sum is σ = 2216512. Its totient is φ = 1662372.

The previous prime is 1939439. The next prime is 1939447. The reversal of 1939441 is 1449391.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1939441 - 2¹ = 1939439 is a prime.

It is a super-2 number, since 2×1939441² = 7522862784962, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1939447) 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, 138525 + ... + 138538.

It is an arithmetic number, because the mean of its divisors is an integer number (554128).

2^1939441 is an apocalyptic number.

It is an amenable number.

1939441 is a deficient number, since it is larger than the sum of its proper divisors (277071).

1939441 is an equidigital number, since it uses as much as digits as its factorization.

1939441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277070.

The product of its digits is 3888, while the sum is 31.

The square root of 1939441 is about 1392.6381439556. The cubic root of 1939441 is about 124.7073902374.

The spelling of 1939441 in words is "one million, nine hundred thirty-nine thousand, four hundred forty-one".