102420466 has 8 divisors (see below), whose sum is σ = 158586624. Its totient is φ = 49558260.

The previous prime is 102420443. The next prime is 102420467. The reversal of 102420466 is 664024201.

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

It is a self number, because there is not a number n which added to its sum of digits gives 102420466.

It is not an unprimeable number, because it can be changed into a prime (102420467) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 825910 + ... + 826033.

It is an arithmetic number, because the mean of its divisors is an integer number (19823328).

Almost surely, 2^102420466 is an apocalyptic number.

102420466 is a deficient number, since it is larger than the sum of its proper divisors (56166158).

102420466 is a wasteful number, since it uses less digits than its factorization.

102420466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1651976.

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 102420466 is about 10120.2996991196. The cubic root of 102420466 is about 467.8740042394.

Adding to 102420466 its reverse (664024201), we get a palindrome (766444667).

The spelling of 102420466 in words is "one hundred two million, four hundred twenty thousand, four hundred sixty-six".