1376774480 has 80 divisors (see below), whose sum is σ = 3448065024. Its totient is φ = 509752320.

The previous prime is 1376774471. The next prime is 1376774489. The reversal of 1376774480 is 844776731.

It is an interprime number because it is at equal distance from previous prime (1376774471) and next prime (1376774489).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1376774489) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44972 + ... + 69108.

Almost surely, 2^1376774480 is an apocalyptic number.

1376774480 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 1376774480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1724032512).

1376774480 is an abundant number, since it is smaller than the sum of its proper divisors (2071290544).

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

1376774480 is a wasteful number, since it uses less digits than its factorization.

1376774480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24204 (or 24198 counting only the distinct ones).

The product of its (nonzero) digits is 790272, while the sum is 47.

The square root of 1376774480 is about 37104.9118042342. The cubic root of 1376774480 is about 1112.4681921638.

The spelling of 1376774480 in words is "one billion, three hundred seventy-six million, seven hundred seventy-four thousand, four hundred eighty".