1338026256 has 80 divisors (see below), whose sum is σ = 4389302400. Its totient is φ = 382292352.

The previous prime is 1338026233. The next prime is 1338026269. The reversal of 1338026256 is 6526208331.

It is a happy number.

1338026256 is a `hidden beast` number, since 1 + 3 + 380 + 26 + 256 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 1338026256.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 218211 + ... + 224258.

It is an arithmetic number, because the mean of its divisors is an integer number (54866280).

Almost surely, 2^1338026256 is an apocalyptic number.

1338026256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1338026256 is an abundant number, since it is smaller than the sum of its proper divisors (3051276144).

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

1338026256 is a wasteful number, since it uses less digits than its factorization.

1338026256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442493 (or 442481 counting only the distinct ones).

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

The square root of 1338026256 is about 36579.0412121477. The cubic root of 1338026256 is about 1101.9322116880.

The spelling of 1338026256 in words is "one billion, three hundred thirty-eight million, twenty-six thousand, two hundred fifty-six".