612340 has 24 divisors (see below), whose sum is σ = 1362312. Its totient is φ = 230400.

The previous prime is 612331. The next prime is 612341. The reversal of 612340 is 43216.

612340 = T₇₅ + T₇₆ + ... + T₁₅₉.

612340 = 195² + 196² + ... + 209².

It can be written as a sum of positive squares in 4 ways, for example, as 40804 + 571536 = 202^2 + 756^2 .

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612341) 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, 561 + ... + 1240.

It is an arithmetic number, because the mean of its divisors is an integer number (56763).

2⁶¹²³⁴⁰ is an apocalyptic number.

It is an amenable number.

612340 is an abundant number, since it is smaller than the sum of its proper divisors (749972).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

612340 is a wasteful number, since it uses less digits than its factorization.

612340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1827 (or 1825 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 612340 is about 782.5215651980. The cubic root of 612340 is about 84.9175671414.

Adding to 612340 its reverse (43216), we get a palindrome (655556).

It can be divided in two parts, 61 and 2340, that added together give a 4-th power (2401 = 7⁴).

The spelling of 612340 in words is "six hundred twelve thousand, three hundred forty".