190438200 has 144 divisors (see below), whose sum is σ = 643671600. Its totient is φ = 50457600.

The previous prime is 190438189. The next prime is 190438217. The reversal of 190438200 is 2834091.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 433581 + ... + 434019.

Almost surely, 2^190438200 is an apocalyptic number.

190438200 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 190438200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (321835800).

190438200 is an abundant number, since it is smaller than the sum of its proper divisors (453233400).

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

190438200 is a wasteful number, since it uses less digits than its factorization.

190438200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 702 (or 690 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 190438200 is about 13799.9347824546. The cubic root of 190438200 is about 575.3313276336.

It can be divided in two parts, 1904 and 38200, that added together give a palindrome (40104).

The spelling of 190438200 in words is "one hundred ninety million, four hundred thirty-eight thousand, two hundred".