425329245440 has 288 divisors, whose sum is σ = 1207672381440. Its totient is φ = 141795532800.

The previous prime is 425329245437. The next prime is 425329245449. The reversal of 425329245440 is 44542923524.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a junction number, because it is equal to n+sod(n) for n = 425329245391 and 425329245400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425329245449) 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, 8267477 + ... + 8318763.

It is an arithmetic number, because the mean of its divisors is an integer number (4193306880).

Almost surely, 2^425329245440 is an apocalyptic number.

425329245440 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 425329245440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (603836190720).

425329245440 is an abundant number, since it is smaller than the sum of its proper divisors (782343136000).

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

425329245440 is a wasteful number, since it uses less digits than its factorization.

425329245440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51369 (or 51355 counting only the distinct ones).

The product of its (nonzero) digits is 1382400, while the sum is 44.

The spelling of 425329245440 in words is "four hundred twenty-five billion, three hundred twenty-nine million, two hundred forty-five thousand, four hundred forty".