742449 has 8 divisors (see below), whose sum is σ = 994752. Its totient is φ = 492560.

The previous prime is 742439. The next prime is 742457. The reversal of 742449 is 944247.

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

It is a cyclic number.

It is not a de Polignac number, because 742449 - 2⁸ = 742193 is a prime.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (742409) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 319 + ... + 1259.

It is an arithmetic number, because the mean of its divisors is an integer number (124344).

2⁷⁴²⁴⁴⁹ is an apocalyptic number.

It is an amenable number.

742449 is a deficient number, since it is larger than the sum of its proper divisors (252303).

742449 is a wasteful number, since it uses less digits than its factorization.

742449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1207.

The product of its digits is 8064, while the sum is 30.

The square root of 742449 is about 861.6548032710. The cubic root of 742449 is about 90.5500877564.

The spelling of 742449 in words is "seven hundred forty-two thousand, four hundred forty-nine".