1373887008 has 144 divisors (see below), whose sum is σ = 4363684416. Its totient is φ = 422703360.

The previous prime is 1373887007. The next prime is 1373887049. The reversal of 1373887008 is 8007883731.

It is a tau number, because it is divible by the number of its divisors (144).

It is not an unprimeable number, because it can be changed into a prime (1373887003) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 94293 + ... + 107883.

It is an arithmetic number, because the mean of its divisors is an integer number (30303364).

Almost surely, 2^1373887008 is an apocalyptic number.

1373887008 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 1373887008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2181842208).

1373887008 is an abundant number, since it is smaller than the sum of its proper divisors (2989797408).

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

1373887008 is a wasteful number, since it uses less digits than its factorization.

1373887008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13629 (or 13609 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 45.

The square root of 1373887008 is about 37065.9818162153. The cubic root of 1373887008 is about 1111.6899313188.

The spelling of 1373887008 in words is "one billion, three hundred seventy-three million, eight hundred eighty-seven thousand, eight".