100642050 has 144 divisors (see below), whose sum is σ = 290160000. Its totient is φ = 24935040.

The previous prime is 100642033. The next prime is 100642079. The reversal of 100642050 is 50246001.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 675376 + ... + 675524.

It is an arithmetic number, because the mean of its divisors is an integer number (2015000).

Almost surely, 2^100642050 is an apocalyptic number.

100642050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 100642050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (145080000).

100642050 is an abundant number, since it is smaller than the sum of its proper divisors (189517950).

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

100642050 is a wasteful number, since it uses less digits than its factorization.

100642050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265 (or 257 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 100642050 is about 10032.0511362333. The cubic root of 100642050 is about 465.1501422893.

Adding to 100642050 its reverse (50246001), we get a palindrome (150888051).

The spelling of 100642050 in words is "one hundred million, six hundred forty-two thousand, fifty".