1393242 has 8 divisors (see below), whose sum is σ = 2786496. Its totient is φ = 464412.

The previous prime is 1393241. The next prime is 1393253. The reversal of 1393242 is 2423931.

It is a sphenic number, since it is the product of 3 distinct primes.

1393242 is an admirable number.

It is a super-2 number, since 2×1393242² = 3882246541128, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1393241) 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, 116098 + ... + 116109.

It is an arithmetic number, because the mean of its divisors is an integer number (348312).

2^1393242 is an apocalyptic number.

1393242 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1393242 is a wasteful number, since it uses less digits than its factorization.

1393242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232212.

The product of its digits is 1296, while the sum is 24.

The square root of 1393242 is about 1180.3567257401. The cubic root of 1393242 is about 111.6886014186.

Subtracting from 1393242 its product of digits (1296), we obtain a triangular number (1391946 = T₁₆₆₈).

The spelling of 1393242 in words is "one million, three hundred ninety-three thousand, two hundred forty-two".