425140161240 has 256 divisors, whose sum is σ = 1411623936000. Its totient is φ = 101999278080.

The previous prime is 425140161233. The next prime is 425140161263. The reversal of 425140161240 is 42161041524.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 425140161198 and 425140161207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3980617 + ... + 4086023.

It is an arithmetic number, because the mean of its divisors is an integer number (5514156000).

Almost surely, 2^425140161240 is an apocalyptic number.

425140161240 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 425140161240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (705811968000).

425140161240 is an abundant number, since it is smaller than the sum of its proper divisors (986483774760).

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

425140161240 is a wasteful number, since it uses less digits than its factorization.

425140161240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105530 (or 105526 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

The spelling of 425140161240 in words is "four hundred twenty-five billion, one hundred forty million, one hundred sixty-one thousand, two hundred forty".