1393976896 has 63 divisors (see below), whose sum is σ = 3003690081. Its totient is φ = 641581824.

The previous prime is 1393976873. The next prime is 1393976921. The reversal of 1393976896 is 6986793931.

The square root of 1393976896 is 37336.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 206209600 + 1187767296 = 14360^2 + 34464^2 .

It is a Duffinian number.

Its product of digits (13226976) is a multiple of the sum of its prime factors (756).

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 3882765 + ... + 3883123.

Almost surely, 2^1393976896 is an apocalyptic number.

1393976896 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

1393976896 is the 37336-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1393976896

1393976896 is an abundant number, since it is smaller than the sum of its proper divisors (1609713185).

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

1393976896 is an frugal number, since it uses more digits than its factorization.

1393976896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 756 (or 374 counting only the distinct ones).

The product of its digits is 13226976, while the sum is 61.

The cubic root of 1393976896 is about 1117.0823549971.

The spelling of 1393976896 in words is "one billion, three hundred ninety-three million, nine hundred seventy-six thousand, eight hundred ninety-six".