1393941 has 4 divisors (see below), whose sum is σ = 1858592. Its totient is φ = 929292.

The previous prime is 1393939. The next prime is 1393957. The reversal of 1393941 is 1493931.

1393941 is nontrivially palindromic in base 8.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1493931 = 3 ⋅497977.

It is not a de Polignac number, because 1393941 - 2¹ = 1393939 is a prime.

It is a super-2 number, since 2×1393941² = 3886143022962, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

1393941 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1393899 and 1393908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1393921) 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, 232321 + ... + 232326.

It is an arithmetic number, because the mean of its divisors is an integer number (464648).

2^1393941 is an apocalyptic number.

It is an amenable number.

1393941 is a deficient number, since it is larger than the sum of its proper divisors (464651).

1393941 is an equidigital number, since it uses as much as digits as its factorization.

1393941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 464650.

The product of its digits is 2916, while the sum is 30.

The square root of 1393941 is about 1180.6527855386. The cubic root of 1393941 is about 111.7072766332.

The spelling of 1393941 in words is "one million, three hundred ninety-three thousand, nine hundred forty-one".