102056940 has 72 divisors (see below), whose sum is σ = 313535040. Its totient is φ = 26866944.

The previous prime is 102056909. The next prime is 102056947. The reversal of 102056940 is 49650201.

It is not an unprimeable number, because it can be changed into a prime (102056947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10632 + ... + 17808.

Almost surely, 2^102056940 is an apocalyptic number.

102056940 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 102056940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (156767520).

102056940 is an abundant number, since it is smaller than the sum of its proper divisors (211478100).

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

102056940 is a wasteful number, since it uses less digits than its factorization.

102056940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7271 (or 7266 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 102056940 is about 10102.3234951173. The cubic root of 102056940 is about 467.3197986226.

The spelling of 102056940 in words is "one hundred two million, fifty-six thousand, nine hundred forty".