102603420 has 108 divisors (see below), whose sum is σ = 328681080. Its totient is φ = 25904448.

The previous prime is 102603377. The next prime is 102603433. The reversal of 102603420 is 24306201.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 102603393 and 102603402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 64191 + ... + 65769.

Almost surely, 2^102603420 is an apocalyptic number.

102603420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 102603420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (164340540).

102603420 is an abundant number, since it is smaller than the sum of its proper divisors (226077660).

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

102603420 is a wasteful number, since it uses less digits than its factorization.

102603420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1632 (or 1608 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 102603420 is about 10129.3346277038. The cubic root of 102603420 is about 468.1524267904.

Adding to 102603420 its reverse (24306201), we get a palindrome (126909621).

The spelling of 102603420 in words is "one hundred two million, six hundred three thousand, four hundred twenty".