615340 has 24 divisors (see below), whose sum is σ = 1410192. Its totient is φ = 223680.

The previous prime is 615337. The next prime is 615341. The reversal of 615340 is 43516.

615340 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (615341) 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, 1179 + ... + 1618.

It is an arithmetic number, because the mean of its divisors is an integer number (58758).

2⁶¹⁵³⁴⁰ is an apocalyptic number.

It is an amenable number.

615340 is an abundant number, since it is smaller than the sum of its proper divisors (794852).

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

615340 is a wasteful number, since it uses less digits than its factorization.

615340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2817 (or 2815 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 615340 is about 784.4361031977. The cubic root of 615340 is about 85.0560184368.

Adding to 615340 its reverse (43516), we get a palindrome (658856).

The spelling of 615340 in words is "six hundred fifteen thousand, three hundred forty".