425835840 has 224 divisors, whose sum is σ = 1433779200. Its totient is φ = 106905600.

The previous prime is 425835827. The next prime is 425835857. The reversal of 425835840 is 48538524.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1219986 + ... + 1220334.

It is an arithmetic number, because the mean of its divisors is an integer number (6400800).

Almost surely, 2^425835840 is an apocalyptic number.

425835840 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 425835840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (716889600).

425835840 is an abundant number, since it is smaller than the sum of its proper divisors (1007943360).

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

425835840 is a wasteful number, since it uses less digits than its factorization.

425835840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 441 (or 431 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 39.

The square root of 425835840 is about 20635.7902683663. The cubic root of 425835840 is about 752.3398569456.

The spelling of 425835840 in words is "four hundred twenty-five million, eight hundred thirty-five thousand, eight hundred forty".