610722420 has 192 divisors, whose sum is σ = 2164893696. Its totient is φ = 124945920.

The previous prime is 610722419. The next prime is 610722449. The reversal of 610722420 is 24227016.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 308554 + ... + 310526.

It is an arithmetic number, because the mean of its divisors is an integer number (11275488).

Almost surely, 2^610722420 is an apocalyptic number.

610722420 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 610722420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1082446848).

610722420 is an abundant number, since it is smaller than the sum of its proper divisors (1554171276).

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

610722420 is a wasteful number, since it uses less digits than its factorization.

610722420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2070 (or 2068 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 610722420 is about 24712.7987083616. The cubic root of 610722420 is about 848.4272740713.

Adding to 610722420 its reverse (24227016), we get a palindrome (634949436).

The spelling of 610722420 in words is "six hundred ten million, seven hundred twenty-two thousand, four hundred twenty".