428494103340 has 96 divisors (see below), whose sum is σ = 1208154097920. Its totient is φ = 113469071616.

The previous prime is 428494103327. The next prime is 428494103341. The reversal of 428494103340 is 43301494824.

It is a junction number, because it is equal to n+sod(n) for n = 428494103292 and 428494103301.

It is not an unprimeable number, because it can be changed into a prime (428494103341) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12080151 + ... + 12115569.

It is an arithmetic number, because the mean of its divisors is an integer number (12584938520).

Almost surely, 2^428494103340 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 428494103340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (604077048960).

428494103340 is an abundant number, since it is smaller than the sum of its proper divisors (779659994580).

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

428494103340 is a wasteful number, since it uses less digits than its factorization.

428494103340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36831 (or 36829 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 42.

The spelling of 428494103340 in words is "four hundred twenty-eight billion, four hundred ninety-four million, one hundred three thousand, three hundred forty".