1394831856 has 240 divisors, whose sum is σ = 4188176384. Its totient is φ = 399168000.

The previous prime is 1394831839. The next prime is 1394831863. The reversal of 1394831856 is 6581384931.

1394831856 is an esthetic number in base 3, because in such base its adjacent digits differ by 1.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10982865 + ... + 10982991.

Almost surely, 2^1394831856 is an apocalyptic number.

1394831856 is a gapful number since it is divisible by the number (16) 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 1394831856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2094088192).

1394831856 is an abundant number, since it is smaller than the sum of its proper divisors (2793344528).

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

1394831856 is a wasteful number, since it uses less digits than its factorization.

1394831856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252 (or 235 counting only the distinct ones).

The product of its digits is 622080, while the sum is 48.

The square root of 1394831856 is about 37347.4477842864. The cubic root of 1394831856 is about 1117.3106862665.

The spelling of 1394831856 in words is "one billion, three hundred ninety-four million, eight hundred thirty-one thousand, eight hundred fifty-six".