656490246 has 16 divisors (see below), whose sum is σ = 1313703984. Its totient is φ = 218709504.

The previous prime is 656490229. The next prime is 656490253. The reversal of 656490246 is 642094656.

It is a junction number, because it is equal to n+sod(n) for n = 656490198 and 656490207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17971 + ... + 40446.

It is an arithmetic number, because the mean of its divisors is an integer number (82106499).

Almost surely, 2^656490246 is an apocalyptic number.

656490246 is an abundant number, since it is smaller than the sum of its proper divisors (657213738).

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

656490246 is a wasteful number, since it uses less digits than its factorization.

656490246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60295.

The product of its (nonzero) digits is 311040, while the sum is 42.

The square root of 656490246 is about 25622.0656075969. The cubic root of 656490246 is about 869.1126929182.

The spelling of 656490246 in words is "six hundred fifty-six million, four hundred ninety thousand, two hundred forty-six".