138378200 has 24 divisors (see below), whose sum is σ = 321729780. Its totient is φ = 55351200.

The previous prime is 138378193. The next prime is 138378211. The reversal of 138378200 is 2873831.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 345746 + ... + 346145.

Almost surely, 2^138378200 is an apocalyptic number.

138378200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

138378200 is an abundant number, since it is smaller than the sum of its proper divisors (183351580).

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

138378200 is a wasteful number, since it uses less digits than its factorization.

138378200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 691907 (or 691898 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 138378200 is about 11763.4263715977. The cubic root of 138378200 is about 517.2365731252.

The spelling of 138378200 in words is "one hundred thirty-eight million, three hundred seventy-eight thousand, two hundred".