1338724856 has 32 divisors (see below), whose sum is σ = 2911520640. Its totient is φ = 565174368.

The previous prime is 1338724853. The next prime is 1338724859. The reversal of 1338724856 is 6584278331.

It is an interprime number because it is at equal distance from previous prime (1338724853) and next prime (1338724859).

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 1338724856.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1338724853) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 174650 + ... + 182153.

It is an arithmetic number, because the mean of its divisors is an integer number (90985020).

Almost surely, 2^1338724856 is an apocalyptic number.

It is an amenable number.

1338724856 is an abundant number, since it is smaller than the sum of its proper divisors (1572795784).

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

1338724856 is a wasteful number, since it uses less digits than its factorization.

1338724856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356883 (or 356879 counting only the distinct ones).

The product of its digits is 967680, while the sum is 47.

The square root of 1338724856 is about 36588.5891501708. The cubic root of 1338724856 is about 1102.1239557844.

The spelling of 1338724856 in words is "one billion, three hundred thirty-eight million, seven hundred twenty-four thousand, eight hundred fifty-six".