734642 has 4 divisors (see below), whose sum is σ = 1101966. Its totient is φ = 367320.

The previous prime is 734627. The next prime is 734647. The reversal of 734642 is 246437.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 246437 = 281 ⋅877.

It can be written as a sum of positive squares in only one way, i.e., 410881 + 323761 = 641^2 + 569^2 .

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 734642.

It is not an unprimeable number, because it can be changed into a prime (734647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 183659 + ... + 183662.

2⁷³⁴⁶⁴² is an apocalyptic number.

734642 is a deficient number, since it is larger than the sum of its proper divisors (367324).

734642 is a wasteful number, since it uses less digits than its factorization.

734642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367323.

The product of its digits is 4032, while the sum is 26.

The square root of 734642 is about 857.1125947039. The cubic root of 734642 is about 90.2315846538.

The spelling of 734642 in words is "seven hundred thirty-four thousand, six hundred forty-two".