256466612 has 6 divisors (see below), whose sum is σ = 448816578. Its totient is φ = 128233304.

The previous prime is 256466599. The next prime is 256466621. The reversal of 256466612 is 216664652.

It can be written as a sum of positive squares in only one way, i.e., 256192036 + 274576 = 16006^2 + 524^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32058323 + ... + 32058330.

It is an arithmetic number, because the mean of its divisors is an integer number (74802763).

Almost surely, 2^256466612 is an apocalyptic number.

It is an amenable number.

256466612 is a deficient number, since it is larger than the sum of its proper divisors (192349966).

256466612 is a wasteful number, since it uses less digits than its factorization.

256466612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64116657 (or 64116655 counting only the distinct ones).

The product of its digits is 103680, while the sum is 38.

The square root of 256466612 is about 16014.5749865552. The cubic root of 256466612 is about 635.3459680837.

The spelling of 256466612 in words is "two hundred fifty-six million, four hundred sixty-six thousand, six hundred twelve".