102626780 has 12 divisors (see below), whose sum is σ = 215516280. Its totient is φ = 41050704.

The previous prime is 102626747. The next prime is 102626861. The reversal of 102626780 is 87626201.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2565650 + ... + 2565689.

It is an arithmetic number, because the mean of its divisors is an integer number (17959690).

Almost surely, 2^102626780 is an apocalyptic number.

102626780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102626780 is an abundant number, since it is smaller than the sum of its proper divisors (112889500).

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

102626780 is a wasteful number, since it uses less digits than its factorization.

102626780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5131348 (or 5131346 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 102626780 is about 10130.4876486771. The cubic root of 102626780 is about 468.1879526070.

The spelling of 102626780 in words is "one hundred two million, six hundred twenty-six thousand, seven hundred eighty".