1378842201 has 24 divisors (see below), whose sum is σ = 2197147680. Its totient is φ = 826267200.

The previous prime is 1378842193. The next prime is 1378842229. The reversal of 1378842201 is 1022488731.

1378842201 is a `hidden beast` number, since 1 + 378 + 84 + 2 + 201 = 666.

It is not a de Polignac number, because 1378842201 - 2³ = 1378842193 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1378842271) 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 23 ways as a sum of consecutive naturals, for example, 69435 + ... + 87056.

It is an arithmetic number, because the mean of its divisors is an integer number (91547820).

Almost surely, 2^1378842201 is an apocalyptic number.

1378842201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1378842201 is a deficient number, since it is larger than the sum of its proper divisors (818305479).

1378842201 is a wasteful number, since it uses less digits than its factorization.

1378842201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156597 (or 156594 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 1378842201 is about 37132.7645213765. The cubic root of 1378842201 is about 1113.0248370063.

The spelling of 1378842201 in words is "one billion, three hundred seventy-eight million, eight hundred forty-two thousand, two hundred one".