3425521440 has 192 divisors, whose sum is σ = 11994417792. Its totient is φ = 814694400.

The previous prime is 3425521417. The next prime is 3425521453. The reversal of 3425521440 is 441255243.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

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 = 3425521398 and 3425521407.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 273720 + ... + 285960.

It is an arithmetic number, because the mean of its divisors is an integer number (62470926).

Almost surely, 2^3425521440 is an apocalyptic number.

3425521440 is a gapful number since it is divisible by the number (30) 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 3425521440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5997208896).

3425521440 is an abundant number, since it is smaller than the sum of its proper divisors (8568896352).

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

3425521440 is a wasteful number, since it uses less digits than its factorization.

3425521440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12323 (or 12315 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 30.

The square root of 3425521440 is about 58527.9543466197. The cubic root of 3425521440 is about 1507.4476185633.

Adding to 3425521440 its reverse (441255243), we get a palindrome (3866776683).

The spelling of 3425521440 in words is "three billion, four hundred twenty-five million, five hundred twenty-one thousand, four hundred forty".