102403456 has 32 divisors (see below), whose sum is σ = 204707880. Its totient is φ = 51025920.

The previous prime is 102403453. The next prime is 102403463. The reversal of 102403456 is 654304201.

It is a tau number, because it is divible by the number of its divisors (32).

It is a self number, because there is not a number n which added to its sum of digits gives 102403456.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102403453) 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, 41160 + ... + 43576.

Almost surely, 2^102403456 is an apocalyptic number.

102403456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

102403456 is a deficient number, since it is larger than the sum of its proper divisors (102304424).

102403456 is an equidigital number, since it uses as much as digits as its factorization.

102403456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2762 (or 2750 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 102403456 is about 10119.4592740917. The cubic root of 102403456 is about 467.8481012868.

Adding to 102403456 its reverse (654304201), we get a palindrome (756707657).

The spelling of 102403456 in words is "one hundred two million, four hundred three thousand, four hundred fifty-six".