4243897407 has 16 divisors (see below), whose sum is σ = 5695700192. Its totient is φ = 2810712960.

The previous prime is 4243897379. The next prime is 4243897421. The reversal of 4243897407 is 7047983424.

It is not a de Polignac number, because 4243897407 - 2¹⁶ = 4243831871 is a prime.

It is a super-2 number, since 2×4243897407² = 36021330402282647298, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4243897457) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 603033 + ... + 610029.

It is an arithmetic number, because the mean of its divisors is an integer number (355981262).

Almost surely, 2^4243897407 is an apocalyptic number.

4243897407 is a deficient number, since it is larger than the sum of its proper divisors (1451802785).

4243897407 is a wasteful number, since it uses less digits than its factorization.

4243897407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8298.

The product of its (nonzero) digits is 1354752, while the sum is 48.

The square root of 4243897407 is about 65145.2024864456. The cubic root of 4243897407 is about 1619.0302338748.

The spelling of 4243897407 in words is "four billion, two hundred forty-three million, eight hundred ninety-seven thousand, four hundred seven".