1376540652 has 72 divisors (see below), whose sum is σ = 3409194096. Its totient is φ = 432222336.

The previous prime is 1376540603. The next prime is 1376540689. The reversal of 1376540652 is 2560456731.

It is a self number, because there is not a number n which added to its sum of digits gives 1376540652.

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, 852598 + ... + 854210.

It is an arithmetic number, because the mean of its divisors is an integer number (47349918).

Almost surely, 2^1376540652 is an apocalyptic number.

1376540652 is a gapful number since it is divisible by the number (12) 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 1376540652, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1704597048).

1376540652 is an abundant number, since it is smaller than the sum of its proper divisors (2032653444).

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

1376540652 is a wasteful number, since it uses less digits than its factorization.

1376540652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1855 (or 1834 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 39.

The square root of 1376540652 is about 37101.7607668423. The cubic root of 1376540652 is about 1112.4052089752.

The spelling of 1376540652 in words is "one billion, three hundred seventy-six million, five hundred forty thousand, six hundred fifty-two".