1378297700 has 36 divisors (see below), whose sum is σ = 3220978740. Its totient is φ = 508909440.

The previous prime is 1378297663. The next prime is 1378297721. The reversal of 1378297700 is 77928731.

It can be written as a sum of positive squares in 6 ways, for example, as 2184484 + 1376113216 = 1478^2 + 37096^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 528815 + ... + 531414.

Almost surely, 2^1378297700 is an apocalyptic number.

1378297700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1378297700 is an abundant number, since it is smaller than the sum of its proper divisors (1842681040).

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

1378297700 is a wasteful number, since it uses less digits than its factorization.

1378297700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1060256 (or 1060249 counting only the distinct ones).

The product of its (nonzero) digits is 148176, while the sum is 44.

The square root of 1378297700 is about 37125.4319840187. The cubic root of 1378297700 is about 1112.8783075657.

The spelling of 1378297700 in words is "one billion, three hundred seventy-eight million, two hundred ninety-seven thousand, seven hundred".