4045025440 has 24 divisors (see below), whose sum is σ = 9556372980. Its totient is φ = 1618010112.

The previous prime is 4045025429. The next prime is 4045025471. The reversal of 4045025440 is 445205404.

It can be written as a sum of positive squares in 2 ways, for example, as 3652510096 + 392515344 = 60436^2 + 19812^2 .

It is a junction number, because it is equal to n+sod(n) for n = 4045025399 and 4045025408.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12640545 + ... + 12640864.

Almost surely, 2^4045025440 is an apocalyptic number.

4045025440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4045025440 is an abundant number, since it is smaller than the sum of its proper divisors (5511347540).

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

4045025440 is a wasteful number, since it uses less digits than its factorization.

4045025440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25281424 (or 25281416 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 28.

The square root of 4045025440 is about 63600.5144633280. The cubic root of 4045025440 is about 1593.3349618435.

The spelling of 4045025440 in words is "four billion, forty-five million, twenty-five thousand, four hundred forty".