102204478 has 8 divisors (see below), whose sum is σ = 153386568. Its totient is φ = 51075624.

The previous prime is 102204469. The next prime is 102204503. The reversal of 102204478 is 874402201.

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

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 3 ways as a sum of consecutive naturals, for example, 8101 + ... + 16432.

It is an arithmetic number, because the mean of its divisors is an integer number (19173321).

Almost surely, 2^102204478 is an apocalyptic number.

102204478 is a deficient number, since it is larger than the sum of its proper divisors (51182090).

102204478 is a wasteful number, since it uses less digits than its factorization.

102204478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26618.

The product of its (nonzero) digits is 3584, while the sum is 28.

The square root of 102204478 is about 10109.6230394610. The cubic root of 102204478 is about 467.5448828766.

Adding to 102204478 its reverse (874402201), we get a palindrome (976606679).

The spelling of 102204478 in words is "one hundred two million, two hundred four thousand, four hundred seventy-eight".