102806240 has 48 divisors (see below), whose sum is σ = 243628560. Its totient is φ = 40995840.

The previous prime is 102806237. The next prime is 102806267. The reversal of 102806240 is 42608201.

It is a congruent number.

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, 64655 + ... + 66225.

It is an arithmetic number, because the mean of its divisors is an integer number (5075595).

Almost surely, 2^102806240 is an apocalyptic number.

102806240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102806240 is an abundant number, since it is smaller than the sum of its proper divisors (140822320).

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

102806240 is a wasteful number, since it uses less digits than its factorization.

102806240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1995 (or 1987 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 102806240 is about 10139.3412014785. The cubic root of 102806240 is about 468.4606952011.

The spelling of 102806240 in words is "one hundred two million, eight hundred six thousand, two hundred forty".