1377922216 has 64 divisors (see below), whose sum is σ = 2990494080. Its totient is φ = 588257280.

The previous prime is 1377922163. The next prime is 1377922223. The reversal of 1377922216 is 6122297731.

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, 1401261 + ... + 1402243.

It is an arithmetic number, because the mean of its divisors is an integer number (46726470).

Almost surely, 2^1377922216 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1377922216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1495247040).

1377922216 is an abundant number, since it is smaller than the sum of its proper divisors (1612571864).

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

1377922216 is a wasteful number, since it uses less digits than its factorization.

1377922216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1954 (or 1950 counting only the distinct ones).

The product of its digits is 63504, while the sum is 40.

The square root of 1377922216 is about 37120.3746748332. The cubic root of 1377922216 is about 1112.7772394267. Note that the first 3 decimals are identical.

The spelling of 1377922216 in words is "one billion, three hundred seventy-seven million, nine hundred twenty-two thousand, two hundred sixteen".