101032640 has 56 divisors (see below), whose sum is σ = 242236752. Its totient is φ = 40135680.

The previous prime is 101032639. The next prime is 101032667. The reversal of 101032640 is 46230101.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49235 + ... + 51245.

Almost surely, 2^101032640 is an apocalyptic number.

101032640 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 101032640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121118376).

101032640 is an abundant number, since it is smaller than the sum of its proper divisors (141204112).

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

101032640 is a wasteful number, since it uses less digits than its factorization.

101032640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2185 (or 2175 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 101032640 is about 10051.4993906382. The cubic root of 101032640 is about 465.7511119747.

Adding to 101032640 its reverse (46230101), we get a palindrome (147262741).

The spelling of 101032640 in words is "one hundred one million, thirty-two thousand, six hundred forty".