1377374976 has 144 divisors (see below), whose sum is σ = 4115553120. Its totient is φ = 454348800.

The previous prime is 1377374963. The next prime is 1377374989. The reversal of 1377374976 is 6794737731.

It is an interprime number because it is at equal distance from previous prime (1377374963) and next prime (1377374989).

It is a tau number, because it is divible by the number of its divisors (144).

It is a super-2 number, since 2×1377374976² = 3794323649022001152, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

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, 697126 + ... + 699098.

It is an arithmetic number, because the mean of its divisors is an integer number (28580230).

Almost surely, 2^1377374976 is an apocalyptic number.

1377374976 is a gapful number since it is divisible by the number (16) 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 1377374976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2057776560).

1377374976 is an abundant number, since it is smaller than the sum of its proper divisors (2738178144).

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

1377374976 is a wasteful number, since it uses less digits than its factorization.

1377374976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2099 (or 2079 counting only the distinct ones).

The product of its digits is 4667544, while the sum is 54.

The square root of 1377374976 is about 37113.0027887801. The cubic root of 1377374976 is about 1112.6299072473.

The spelling of 1377374976 in words is "one billion, three hundred seventy-seven million, three hundred seventy-four thousand, nine hundred seventy-six".