425749872 has 80 divisors (see below), whose sum is σ = 1208136960. Its totient is φ = 128595456.

The previous prime is 425749843. The next prime is 425749873. The reversal of 425749872 is 278947524.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425749873) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 10828 + ... + 31124.

It is an arithmetic number, because the mean of its divisors is an integer number (15101712).

Almost surely, 2^425749872 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 425749872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (604068480).

425749872 is an abundant number, since it is smaller than the sum of its proper divisors (782387088).

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

425749872 is a wasteful number, since it uses less digits than its factorization.

425749872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20350 (or 20344 counting only the distinct ones).

The product of its digits is 1128960, while the sum is 48.

The square root of 425749872 is about 20633.7071802427. The cubic root of 425749872 is about 752.2892259281.

The spelling of 425749872 in words is "four hundred twenty-five million, seven hundred forty-nine thousand, eight hundred seventy-two".