656129382 has 32 divisors (see below), whose sum is σ = 1396546272. Its totient is φ = 204793344.

The previous prime is 656129381. The next prime is 656129393. The reversal of 656129382 is 283921656.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (656129381) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3768 + ... + 36420.

It is an arithmetic number, because the mean of its divisors is an integer number (43642071).

Almost surely, 2^656129382 is an apocalyptic number.

656129382 is an abundant number, since it is smaller than the sum of its proper divisors (740416890).

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

656129382 is a wasteful number, since it uses less digits than its factorization.

656129382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32872.

The product of its digits is 155520, while the sum is 42.

The square root of 656129382 is about 25615.0225844132. The cubic root of 656129382 is about 868.9534171490.

The spelling of 656129382 in words is "six hundred fifty-six million, one hundred twenty-nine thousand, three hundred eighty-two".