4249475440 has 40 divisors (see below), whose sum is σ = 11291464800. Its totient is φ = 1456962816.

The previous prime is 4249475353. The next prime is 4249475441. The reversal of 4249475440 is 445749424.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4249475441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3793615 + ... + 3794734.

It is an arithmetic number, because the mean of its divisors is an integer number (282286620).

Almost surely, 2^4249475440 is an apocalyptic number.

4249475440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4249475440 is an abundant number, since it is smaller than the sum of its proper divisors (7041989360).

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

4249475440 is a wasteful number, since it uses less digits than its factorization.

4249475440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7588369 (or 7588363 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 43.

The square root of 4249475440 is about 65188.0007363318. Note that the first 3 decimals coincide. The cubic root of 4249475440 is about 1619.7392559059.

The spelling of 4249475440 in words is "four billion, two hundred forty-nine million, four hundred seventy-five thousand, four hundred forty".