1371450880 has 80 divisors (see below), whose sum is σ = 3377373120. Its totient is φ = 533716992.

The previous prime is 1371450869. The next prime is 1371450907. The reversal of 1371450880 is 880541731.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87481 + ... + 101959.

It is an arithmetic number, because the mean of its divisors is an integer number (42217164).

Almost surely, 2^1371450880 is an apocalyptic number.

1371450880 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 1371450880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1688686560).

1371450880 is an abundant number, since it is smaller than the sum of its proper divisors (2005922240).

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

1371450880 is an equidigital number, since it uses as much as digits as its factorization.

1371450880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14539 (or 14523 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 37.

The square root of 1371450880 is about 37033.1051898163. The cubic root of 1371450880 is about 1111.0324727753.

The spelling of 1371450880 in words is "one billion, three hundred seventy-one million, four hundred fifty thousand, eight hundred eighty".