1377961104 has 120 divisors (see below), whose sum is σ = 3959663232. Its totient is φ = 412439040.

The previous prime is 1377961093. The next prime is 1377961157. The reversal of 1377961104 is 4011697731.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 297849 + ... + 302439.

Almost surely, 2^1377961104 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 1377961104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1979831616).

1377961104 is an abundant number, since it is smaller than the sum of its proper divisors (2581702128).

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

1377961104 is a wasteful number, since it uses less digits than its factorization.

1377961104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4665 (or 4646 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 39.

The square root of 1377961104 is about 37120.8984805056. The cubic root of 1377961104 is about 1112.7877076698.

The spelling of 1377961104 in words is "one billion, three hundred seventy-seven million, nine hundred sixty-one thousand, one hundred four".