206256464 has 10 divisors (see below), whose sum is σ = 399621930. Its totient is φ = 103128224.

The previous prime is 206256437. The next prime is 206256481. The reversal of 206256464 is 464652602.

It can be written as a sum of positive squares in only one way, i.e., 204718864 + 1537600 = 14308^2 + 1240^2 .

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, 6445499 + ... + 6445530.

It is an arithmetic number, because the mean of its divisors is an integer number (39962193).

Almost surely, 2^206256464 is an apocalyptic number.

It is an amenable number.

206256464 is a deficient number, since it is larger than the sum of its proper divisors (193365466).

206256464 is a wasteful number, since it uses less digits than its factorization.

206256464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12891037 (or 12891031 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 35.

The square root of 206256464 is about 14361.6316621754. The cubic root of 206256464 is about 590.8390475227.

The spelling of 206256464 in words is "two hundred six million, two hundred fifty-six thousand, four hundred sixty-four".