256162662 has 80 divisors (see below), whose sum is σ = 658801440. Its totient is φ = 72876672.

The previous prime is 256162633. The next prime is 256162663. The reversal of 256162662 is 266261652.

256162662 is a `hidden beast` number, since 25 + 6 + 1 + 626 + 6 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256162663) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 449914 + ... + 450482.

It is an arithmetic number, because the mean of its divisors is an integer number (8235018).

Almost surely, 2^256162662 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 256162662, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (329400720).

256162662 is an abundant number, since it is smaller than the sum of its proper divisors (402638778).

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

256162662 is a wasteful number, since it uses less digits than its factorization.

256162662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 987 (or 978 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 256162662 is about 16005.0823802941. The cubic root of 256162662 is about 635.0948766000.

The spelling of 256162662 in words is "two hundred fifty-six million, one hundred sixty-two thousand, six hundred sixty-two".