1394563968 has 384 divisors, whose sum is σ = 4898350080. Its totient is φ = 372252672.

The previous prime is 1394563967. The next prime is 1394563981. The reversal of 1394563968 is 8693654931.

1394563968 is a `hidden beast` number, since 13 + 9 + 4 + 563 + 9 + 68 = 666.

It is a tau number, because it is divible by the number of its divisors (384).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1394563967) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13539405 + ... + 13539507.

It is an arithmetic number, because the mean of its divisors is an integer number (12756120).

Almost surely, 2^1394563968 is an apocalyptic number.

1394563968 is a gapful number since it is divisible by the number (18) 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 1394563968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2449175040).

1394563968 is an abundant number, since it is smaller than the sum of its proper divisors (3503786112).

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

1394563968 is a wasteful number, since it uses less digits than its factorization.

1394563968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226 (or 211 counting only the distinct ones).

The product of its digits is 4199040, while the sum is 54.

The square root of 1394563968 is about 37343.8611822613. The cubic root of 1394563968 is about 1117.2391523662.

The spelling of 1394563968 in words is "one billion, three hundred ninety-four million, five hundred sixty-three thousand, nine hundred sixty-eight".