138790200 has 48 divisors (see below), whose sum is σ = 430251480. Its totient is φ = 37010560.

The previous prime is 138790187. The next prime is 138790217. The reversal of 138790200 is 2097831.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 115059 + ... + 116258.

Almost surely, 2^138790200 is an apocalyptic number.

138790200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

138790200 is an abundant number, since it is smaller than the sum of its proper divisors (291461280).

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

138790200 is a wasteful number, since it uses less digits than its factorization.

138790200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231336 (or 231327 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 138790200 is about 11780.9252607764. The cubic root of 138790200 is about 517.7493955324.

The spelling of 138790200 in words is "one hundred thirty-eight million, seven hundred ninety thousand, two hundred".