100190838 has 64 divisors (see below), whose sum is σ = 232531200. Its totient is φ = 28460160.

The previous prime is 100190837. The next prime is 100190873. The reversal of 100190838 is 838091001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100190837) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 136320 + ... + 137052.

It is an arithmetic number, because the mean of its divisors is an integer number (3633300).

Almost surely, 2^100190838 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 100190838, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116265600).

100190838 is an abundant number, since it is smaller than the sum of its proper divisors (132340362).

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

100190838 is a wasteful number, since it uses less digits than its factorization.

100190838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 877.

The product of its (nonzero) digits is 1728, while the sum is 30.

The square root of 100190838 is about 10009.5373519459. The cubic root of 100190838 is about 464.4539595782.

The spelling of 100190838 in words is "one hundred million, one hundred ninety thousand, eight hundred thirty-eight".