734138 has 4 divisors (see below), whose sum is σ = 1101210. Its totient is φ = 367068.

The previous prime is 734131. The next prime is 734143. The reversal of 734138 is 831437.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 543169 + 190969 = 737^2 + 437^2 .

It is a Curzon number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 734138.

It is not an unprimeable number, because it can be changed into a prime (734131) by changing a digit.

734138 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 as a sum of consecutive naturals, namely, 183533 + ... + 183536.

2⁷³⁴¹³⁸ is an apocalyptic number.

734138 is a deficient number, since it is larger than the sum of its proper divisors (367072).

734138 is a wasteful number, since it uses less digits than its factorization.

734138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367071.

The product of its digits is 2016, while the sum is 26.

The square root of 734138 is about 856.8185338798. The cubic root of 734138 is about 90.2109455206.

The spelling of 734138 in words is "seven hundred thirty-four thousand, one hundred thirty-eight".