1373678380 has 48 divisors (see below), whose sum is σ = 3040571520. Its totient is φ = 520502528.

The previous prime is 1373678377. The next prime is 1373678419. The reversal of 1373678380 is 838763731.

It is a self number, because there is not a number n which added to its sum of digits gives 1373678380.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8397 + ... + 53083.

It is an arithmetic number, because the mean of its divisors is an integer number (63345240).

Almost surely, 2^1373678380 is an apocalyptic number.

1373678380 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 1373678380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1520285760).

1373678380 is an abundant number, since it is smaller than the sum of its proper divisors (1666893140).

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

1373678380 is a wasteful number, since it uses less digits than its factorization.

1373678380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44778 (or 44776 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 46.

The square root of 1373678380 is about 37063.1674307526. The cubic root of 1373678380 is about 1111.6336575529.

The spelling of 1373678380 in words is "one billion, three hundred seventy-three million, six hundred seventy-eight thousand, three hundred eighty".