102089390 has 16 divisors (see below), whose sum is σ = 197896608. Its totient is φ = 37694496.

The previous prime is 102089381. The next prime is 102089423. The reversal of 102089390 is 93980201.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 392522 + ... + 392781.

It is an arithmetic number, because the mean of its divisors is an integer number (12368538).

Almost surely, 2^102089390 is an apocalyptic number.

102089390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102089390 is a deficient number, since it is larger than the sum of its proper divisors (95807218).

102089390 is a wasteful number, since it uses less digits than its factorization.

102089390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 785323.

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 102089390 is about 10103.9294336412. The cubic root of 102089390 is about 467.3693230041.

The spelling of 102089390 in words is "one hundred two million, eighty-nine thousand, three hundred ninety".