1395960880 has 40 divisors (see below), whose sum is σ = 3247229664. Its totient is φ = 558105600.

The previous prime is 1395960877. The next prime is 1395960887. The reversal of 1395960880 is 880695931.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (1395960887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 246885 + ... + 252475.

Almost surely, 2^1395960880 is an apocalyptic number.

1395960880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1395960880 is an abundant number, since it is smaller than the sum of its proper divisors (1851268784).

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

1395960880 is a wasteful number, since it uses less digits than its factorization.

1395960880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8725 (or 8719 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 49.

The square root of 1395960880 is about 37362.5598694736. The cubic root of 1395960880 is about 1117.6120679632.

The spelling of 1395960880 in words is "one billion, three hundred ninety-five million, nine hundred sixty thousand, eight hundred eighty".