656024340 has 96 divisors (see below), whose sum is σ = 1901370240. Its totient is φ = 168892416.

The previous prime is 656024323. The next prime is 656024351. The reversal of 656024340 is 43420656.

656024340 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 656024298 and 656024307.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 228192 + ... + 231048.

It is an arithmetic number, because the mean of its divisors is an integer number (19805940).

Almost surely, 2^656024340 is an apocalyptic number.

656024340 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 656024340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (950685120).

656024340 is an abundant number, since it is smaller than the sum of its proper divisors (1245345900).

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

656024340 is a wasteful number, since it uses less digits than its factorization.

656024340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3001 (or 2999 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 30.

The square root of 656024340 is about 25612.9721039945. The cubic root of 656024340 is about 868.9070434313.

Adding to 656024340 its reverse (43420656), we get a palindrome (699444996).

The spelling of 656024340 in words is "six hundred fifty-six million, twenty-four thousand, three hundred forty".