1373862820 has 192 divisors, whose sum is σ = 3527193600. Its totient is φ = 443555840.

The previous prime is 1373862817. The next prime is 1373862821. The reversal of 1373862820 is 282683731.

It is not an unprimeable number, because it can be changed into a prime (1373862821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5748261 + ... + 5748499.

It is an arithmetic number, because the mean of its divisors is an integer number (18370800).

Almost surely, 2^1373862820 is an apocalyptic number.

1373862820 is a gapful number since it is divisible by the number (10) 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 1373862820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1763596800).

1373862820 is an abundant number, since it is smaller than the sum of its proper divisors (2153330780).

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

1373862820 is a wasteful number, since it uses less digits than its factorization.

1373862820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358 (or 356 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 1373862820 is about 37065.6555317723. The cubic root of 1373862820 is about 1111.6834073195.

Subtracting from 1373862820 its reverse (282683731), we obtain a square (1091179089 = 33033²).

The spelling of 1373862820 in words is "one billion, three hundred seventy-three million, eight hundred sixty-two thousand, eight hundred twenty".