1396862080 has 64 divisors (see below), whose sum is σ = 3373949880. Its totient is φ = 552960000.

The previous prime is 1396862003. The next prime is 1396862099. The reversal of 1396862080 is 802686931.

It can be written as a sum of positive squares in 4 ways, for example, as 1382054976 + 14807104 = 37176^2 + 3848^2 .

It is a tau number, because it is divible by the number of its divisors (64).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50830 + ... + 73330.

Almost surely, 2^1396862080 is an apocalyptic number.

1396862080 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 1396862080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1686974940).

1396862080 is an abundant number, since it is smaller than the sum of its proper divisors (1977087800).

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

1396862080 is an equidigital number, since it uses as much as digits as its factorization.

1396862080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22617 (or 22605 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 43.

The square root of 1396862080 is about 37374.6181251394. The cubic root of 1396862080 is about 1117.8525177131.

The spelling of 1396862080 in words is "one billion, three hundred ninety-six million, eight hundred sixty-two thousand, eighty".