616722260 has 96 divisors (see below), whose sum is σ = 1709745408. Its totient is φ = 180910080.

The previous prime is 616722251. The next prime is 616722263. The reversal of 616722260 is 62227616.

616722260 = 281² + 282² + ... + 1232².

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (616722263) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14402 + ... + 37958.

It is an arithmetic number, because the mean of its divisors is an integer number (17809848).

Almost surely, 2^616722260 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 616722260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (854872704).

616722260 is an abundant number, since it is smaller than the sum of its proper divisors (1093023148).

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

616722260 is a wasteful number, since it uses less digits than its factorization.

616722260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23601 (or 23599 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 616722260 is about 24833.8933717611. The cubic root of 616722260 is about 851.1965892185.

Adding to 616722260 its reverse (62227616), we get a palindrome (678949876).

The spelling of 616722260 in words is "six hundred sixteen million, seven hundred twenty-two thousand, two hundred sixty".