101057880 has 128 divisors (see below), whose sum is σ = 378017280. Its totient is φ = 20997120.

The previous prime is 101057867. The next prime is 101057939. The reversal of 101057880 is 88750101.

It is a super-2 number, since 2×101057880² = 20425390220188800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3772 + ... + 14708.

It is an arithmetic number, because the mean of its divisors is an integer number (2953260).

Almost surely, 2^101057880 is an apocalyptic number.

101057880 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 101057880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (189008640).

101057880 is an abundant number, since it is smaller than the sum of its proper divisors (276959400).

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

101057880 is a wasteful number, since it uses less digits than its factorization.

101057880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10969 (or 10965 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 30.

The square root of 101057880 is about 10052.7548463095. The cubic root of 101057880 is about 465.7898934328.

The spelling of 101057880 in words is "one hundred one million, fifty-seven thousand, eight hundred eighty".