743421442 has 8 divisors (see below), whose sum is σ = 1129248000. Its totient is φ = 367005444.

The previous prime is 743421431. The next prime is 743421491. The reversal of 743421442 is 244124347.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2352442 + ... + 2352757.

It is an arithmetic number, because the mean of its divisors is an integer number (141156000).

Almost surely, 2^743421442 is an apocalyptic number.

743421442 is a deficient number, since it is larger than the sum of its proper divisors (385826558).

743421442 is a wasteful number, since it uses less digits than its factorization.

743421442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4705280.

The product of its digits is 21504, while the sum is 31.

The square root of 743421442 is about 27265.7558486832. The cubic root of 743421442 is about 905.8960395766.

Adding to 743421442 its reverse (244124347), we get a palindrome (987545789).

The spelling of 743421442 in words is "seven hundred forty-three million, four hundred twenty-one thousand, four hundred forty-two".