616230140 has 24 divisors (see below), whose sum is σ = 1295164080. Its totient is φ = 246286208.

The previous prime is 616230133. The next prime is 616230143. The reversal of 616230140 is 41032616.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (616230143) 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, 12944 + ... + 37416.

It is an arithmetic number, because the mean of its divisors is an integer number (53965170).

Almost surely, 2^616230140 is an apocalyptic number.

It is an amenable number.

616230140 is an abundant number, since it is smaller than the sum of its proper divisors (678933940).

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

616230140 is a wasteful number, since it uses less digits than its factorization.

616230140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25741 (or 25739 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 616230140 is about 24823.9831614509. The cubic root of 616230140 is about 850.9701218865.

Adding to 616230140 its reverse (41032616), we get a palindrome (657262756).

The spelling of 616230140 in words is "six hundred sixteen million, two hundred thirty thousand, one hundred forty".