102420304 has 20 divisors (see below), whose sum is σ = 226788064. Its totient is φ = 43894368.

The previous prime is 102420277. The next prime is 102420319. The reversal of 102420304 is 403024201.

It is a Harshad number since it is a multiple of its sum of digits (16).

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, 457122 + ... + 457345.

Almost surely, 2^102420304 is an apocalyptic number.

102420304 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

102420304 is an abundant number, since it is smaller than the sum of its proper divisors (124367760).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102420304 is an equidigital number, since it uses as much as digits as its factorization.

102420304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 914482 (or 914476 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 102420304 is about 10120.2916954009. The cubic root of 102420304 is about 467.8737575581.

Adding to 102420304 its reverse (403024201), we get a palindrome (505444505).

The spelling of 102420304 in words is "one hundred two million, four hundred twenty thousand, three hundred four".