1376979534 has 64 divisors (see below), whose sum is σ = 3503162880. Its totient is φ = 392739840.

The previous prime is 1376979521. The next prime is 1376979551. The reversal of 1376979534 is 4359796731.

It is a happy number.

1376979534 is a `hidden beast` number, since 1 + 37 + 6 + 9 + 79 + 534 = 666.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 239457 + ... + 245139.

It is an arithmetic number, because the mean of its divisors is an integer number (54736920).

Almost surely, 2^1376979534 is an apocalyptic number.

1376979534 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1376979534, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1751581440).

1376979534 is an abundant number, since it is smaller than the sum of its proper divisors (2126183346).

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

1376979534 is a wasteful number, since it uses less digits than its factorization.

1376979534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6342 (or 6336 counting only the distinct ones).

The product of its digits is 4286520, while the sum is 54.

The square root of 1376979534 is about 37107.6748665286. The cubic root of 1376979534 is about 1112.5234190079.

The spelling of 1376979534 in words is "one billion, three hundred seventy-six million, nine hundred seventy-nine thousand, five hundred thirty-four".