102066940 has 24 divisors (see below), whose sum is σ = 215766432. Its totient is φ = 40555200.

The previous prime is 102066889. The next prime is 102066949. The reversal of 102066940 is 49660201.

It is a junction number, because it is equal to n+sod(n) for n = 102066899 and 102066908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102066949) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13879 + ... + 19918.

It is an arithmetic number, because the mean of its divisors is an integer number (8990268).

Almost surely, 2^102066940 is an apocalyptic number.

102066940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102066940 is an abundant number, since it is smaller than the sum of its proper divisors (113699492).

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

102066940 is a wasteful number, since it uses less digits than its factorization.

102066940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33957 (or 33955 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 102066940 is about 10102.8184186394. The cubic root of 102066940 is about 467.3350614924.

The spelling of 102066940 in words is "one hundred two million, sixty-six thousand, nine hundred forty".