208264056 has 128 divisors (see below), whose sum is σ = 699148800. Its totient is φ = 49927680.

The previous prime is 208264039. The next prime is 208264061. The reversal of 208264056 is 650462802.

It is a super-2 number, since 2×208264056² = 86747834043142272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19690 + ... + 28358.

It is an arithmetic number, because the mean of its divisors is an integer number (5462100).

Almost surely, 2^208264056 is an apocalyptic number.

208264056 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 208264056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (349574400).

208264056 is an abundant number, since it is smaller than the sum of its proper divisors (490884744).

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

208264056 is a wasteful number, since it uses less digits than its factorization.

208264056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8709 (or 8705 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 208264056 is about 14431.3566929794. The cubic root of 208264056 is about 592.7498335746.

The spelling of 208264056 in words is "two hundred eight million, two hundred sixty-four thousand, fifty-six".