4005297428 has 24 divisors (see below), whose sum is σ = 7653502080. Its totient is φ = 1818917120.

The previous prime is 4005297409. The next prime is 4005297437. The reversal of 4005297428 is 8247925004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7268 + ... + 89796.

It is an arithmetic number, because the mean of its divisors is an integer number (318895920).

Almost surely, 2^4005297428 is an apocalyptic number.

It is an amenable number.

4005297428 is a deficient number, since it is larger than the sum of its proper divisors (3648204652).

4005297428 is a wasteful number, since it uses less digits than its factorization.

4005297428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83647 (or 83645 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 41.

The square root of 4005297428 is about 63287.4191921270. The cubic root of 4005297428 is about 1588.1015047410.

The spelling of 4005297428 in words is "four billion, five million, two hundred ninety-seven thousand, four hundred twenty-eight".