102406918 has 16 divisors (see below), whose sum is σ = 157988880. Its totient is φ = 49762336.

The previous prime is 102406907. The next prime is 102406939. The reversal of 102406918 is 819604201.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 102406918.

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, 6828 + ... + 15856.

It is an arithmetic number, because the mean of its divisors is an integer number (9874305).

Almost surely, 2^102406918 is an apocalyptic number.

102406918 is a deficient number, since it is larger than the sum of its proper divisors (55581962).

102406918 is a wasteful number, since it uses less digits than its factorization.

102406918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9191.

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 102406918 is about 10119.6303292166. The cubic root of 102406918 is about 467.8533734782.

The spelling of 102406918 in words is "one hundred two million, four hundred six thousand, nine hundred eighteen".