1376245820 has 12 divisors (see below), whose sum is σ = 2890116264. Its totient is φ = 550498320.

The previous prime is 1376245813. The next prime is 1376245841. The reversal of 1376245820 is 285426731.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34406126 + ... + 34406165.

It is an arithmetic number, because the mean of its divisors is an integer number (240843022).

Almost surely, 2^1376245820 is an apocalyptic number.

1376245820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1376245820 is an abundant number, since it is smaller than the sum of its proper divisors (1513870444).

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

1376245820 is a wasteful number, since it uses less digits than its factorization.

1376245820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68812300 (or 68812298 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 38.

The square root of 1376245820 is about 37097.7872655499. The cubic root of 1376245820 is about 1112.3257837702.

The spelling of 1376245820 in words is "one billion, three hundred seventy-six million, two hundred forty-five thousand, eight hundred twenty".