1394884680 has 512 divisors, whose sum is σ = 5494210560. Its totient is φ = 275742720.

The previous prime is 1394884679. The next prime is 1394884691. The reversal of 1394884680 is 864884931.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 10181572 + ... + 10181708.

It is an arithmetic number, because the mean of its divisors is an integer number (10730880).

Almost surely, 2^1394884680 is an apocalyptic number.

1394884680 is a gapful number since it is divisible by the number (10) 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 1394884680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2747105280).

1394884680 is an abundant number, since it is smaller than the sum of its proper divisors (4099325880).

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

1394884680 is a wasteful number, since it uses less digits than its factorization.

1394884680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229 (or 225 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 51.

The square root of 1394884680 is about 37348.1549745098. The cubic root of 1394884680 is about 1117.3247907323.

The spelling of 1394884680 in words is "one billion, three hundred ninety-four million, eight hundred eighty-four thousand, six hundred eighty".