425132240 has 80 divisors (see below), whose sum is σ = 1068504528. Its totient is φ = 156377088.

The previous prime is 425132237. The next prime is 425132251. The reversal of 425132240 is 42231524.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 166823056 + 258309184 = 12916^2 + 16072^2 .

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 349874 + ... + 351086.

Almost surely, 2^425132240 is an apocalyptic number.

425132240 is a gapful number since it is divisible by the number (40) 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 425132240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (534252264).

425132240 is an abundant number, since it is smaller than the sum of its proper divisors (643372288).

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

425132240 is a wasteful number, since it uses less digits than its factorization.

425132240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1576 (or 1570 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 425132240 is about 20618.7351697431. The cubic root of 425132240 is about 751.9252698487.

Adding to 425132240 its reverse (42231524), we get a palindrome (467363764).

The spelling of 425132240 in words is "four hundred twenty-five million, one hundred thirty-two thousand, two hundred forty".