8425404100 has 81 divisors (see below), whose sum is σ = 18696546183. Its totient is φ = 3295628160.

The previous prime is 8425404089. The next prime is 8425404107. The reversal of 8425404100 is 14045248.

The square root of 8425404100 is 91790.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 24581764 + 8400822336 = 4958^2 + 91656^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8425404107) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 61499232 + ... + 61499368.

Almost surely, 2^8425404100 is an apocalyptic number.

8425404100 is the 91790-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8425404100

8425404100 is an abundant number, since it is smaller than the sum of its proper divisors (10271142083).

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

8425404100 is a wasteful number, since it uses less digits than its factorization.

8425404100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422 (or 211 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 28.

The cubic root of 8425404100 is about 2034.8399079609.

Adding to 8425404100 its reverse (14045248), we get a palindrome (8439449348).

The spelling of 8425404100 in words is "eight billion, four hundred twenty-five million, four hundred four thousand, one hundred".