100189434 has 32 divisors (see below), whose sum is σ = 206619840. Its totient is φ = 32372352.

The previous prime is 100189433. The next prime is 100189469. The reversal of 100189434 is 434981001.

It is a happy number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (100189433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23904 + ... + 27780.

It is an arithmetic number, because the mean of its divisors is an integer number (6456870).

Almost surely, 2^100189434 is an apocalyptic number.

100189434 is an abundant number, since it is smaller than the sum of its proper divisors (106430406).

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

100189434 is a wasteful number, since it uses less digits than its factorization.

100189434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4014.

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 100189434 is about 10009.4672185886. The cubic root of 100189434 is about 464.4517900638.

The spelling of 100189434 in words is "one hundred million, one hundred eighty-nine thousand, four hundred thirty-four".