102806474 has 8 divisors (see below), whose sum is σ = 154286208. Its totient is φ = 51377740.

The previous prime is 102806467. The next prime is 102806489. The reversal of 102806474 is 474608201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 102806474.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7232 + ... + 16059.

It is an arithmetic number, because the mean of its divisors is an integer number (19285776).

Almost surely, 2^102806474 is an apocalyptic number.

102806474 is a deficient number, since it is larger than the sum of its proper divisors (51479734).

102806474 is a wasteful number, since it uses less digits than its factorization.

102806474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25500.

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 102806474 is about 10139.3527406832. The cubic root of 102806474 is about 468.4610506261.

The spelling of 102806474 in words is "one hundred two million, eight hundred six thousand, four hundred seventy-four".