1293442 has 4 divisors (see below), whose sum is σ = 1940166. Its totient is φ = 646720.

The previous prime is 1293433. The next prime is 1293473. The reversal of 1293442 is 2443921.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2443921 = 347 ⋅7043.

It can be written as a sum of positive squares in only one way, i.e., 1042441 + 251001 = 1021^2 + 501^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 323359 + ... + 323362.

2^1293442 is an apocalyptic number.

1293442 is a deficient number, since it is larger than the sum of its proper divisors (646724).

1293442 is an equidigital number, since it uses as much as digits as its factorization.

1293442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 646723.

The product of its digits is 1728, while the sum is 25.

The square root of 1293442 is about 1137.2959157581. The cubic root of 1293442 is about 108.9554569282.

The spelling of 1293442 in words is "one million, two hundred ninety-three thousand, four hundred forty-two".