727442 has 8 divisors (see below), whose sum is σ = 1094796. Its totient is φ = 362512.

The previous prime is 727427. The next prime is 727451. The reversal of 727442 is 244727.

It can be written as a sum of positive squares in 2 ways, for example, as 625681 + 101761 = 791^2 + 319^2 .

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

It is a d-powerful number, because it can be written as 7² + 2¹⁷ + 4⁶ + 7⁴ + 4⁸ + 2¹⁹ .

It is an unprimeable number.

727442 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 788 + ... + 1440.

2⁷²⁷⁴⁴² is an apocalyptic number.

727442 is a deficient number, since it is larger than the sum of its proper divisors (367354).

727442 is a wasteful number, since it uses less digits than its factorization.

727442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1212.

The product of its digits is 3136, while the sum is 26.

The square root of 727442 is about 852.9021045818. The cubic root of 727442 is about 89.9358390442.

It can be divided in two parts, 72 and 7442, that multiplied together give a square (535824 = 732²).

The spelling of 727442 in words is "seven hundred twenty-seven thousand, four hundred forty-two", and thus it is an iban number.