425240244 has 288 divisors, whose sum is σ = 1380322944. Its totient is φ = 108380160.

The previous prime is 425240239. The next prime is 425240269. The reversal of 425240244 is 442042524.

425240244 is a `hidden beast` number, since 4 + 252 + 402 + 4 + 4 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3763132 + ... + 3763244.

It is an arithmetic number, because the mean of its divisors is an integer number (4792788).

Almost surely, 2^425240244 is an apocalyptic number.

425240244 is a gapful number since it is divisible by the number (44) 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 425240244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (690161472).

425240244 is an abundant number, since it is smaller than the sum of its proper divisors (955082700).

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

425240244 is a wasteful number, since it uses less digits than its factorization.

425240244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207 (or 202 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 27.

The square root of 425240244 is about 20621.3540777515. The cubic root of 425240244 is about 751.9889394970.

Adding to 425240244 its reverse (442042524), we get a palindrome (867282768).

The spelling of 425240244 in words is "four hundred twenty-five million, two hundred forty thousand, two hundred forty-four".