425207340 has 192 divisors, whose sum is σ = 1371686400. Its totient is φ = 109294848.

The previous prime is 425207329. The next prime is 425207347. The reversal of 425207340 is 43702524.

425207340 is a `hidden beast` number, since 425 + 207 + 34 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (425207347) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2375371 + ... + 2375549.

It is an arithmetic number, because the mean of its divisors is an integer number (7144200).

Almost surely, 2^425207340 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 425207340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (685843200).

425207340 is an abundant number, since it is smaller than the sum of its proper divisors (946479060).

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

425207340 is a wasteful number, since it uses less digits than its factorization.

425207340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333 (or 325 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 27.

The square root of 425207340 is about 20620.5562485593. The cubic root of 425207340 is about 751.9695433379.

Adding to 425207340 its reverse (43702524), we get a palindrome (468909864).

The spelling of 425207340 in words is "four hundred twenty-five million, two hundred seven thousand, three hundred forty".