1573942 has 4 divisors (see below), whose sum is σ = 2360916. Its totient is φ = 786970.

The previous prime is 1573939. The next prime is 1573961. The reversal of 1573942 is 2493751.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2493751 = 13 ⋅191827.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 393484 + ... + 393487.

It is an arithmetic number, because the mean of its divisors is an integer number (590229).

2^1573942 is an apocalyptic number.

1573942 is a deficient number, since it is larger than the sum of its proper divisors (786974).

1573942 is an equidigital number, since it uses as much as digits as its factorization.

1573942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 786973.

The product of its digits is 7560, while the sum is 31.

The square root of 1573942 is about 1254.5684516996. The cubic root of 1573942 is about 116.3222805586.

The spelling of 1573942 in words is "one million, five hundred seventy-three thousand, nine hundred forty-two".