4157043421 has 8 divisors (see below), whose sum is σ = 4376436320. Its totient is φ = 3937710672.

The previous prime is 4157043409. The next prime is 4157043461. The reversal of 4157043421 is 1243407514.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4157043421 - 2¹⁵ = 4157010653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4157043461) 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, 226246 + ... + 243928.

It is an arithmetic number, because the mean of its divisors is an integer number (547054540).

Almost surely, 2^4157043421 is an apocalyptic number.

It is an amenable number.

4157043421 is a deficient number, since it is larger than the sum of its proper divisors (219392899).

4157043421 is a wasteful number, since it uses less digits than its factorization.

4157043421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30075.

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 4157043421 is about 64475.1380068317. The cubic root of 4157043421 is about 1607.9092005289.

The spelling of 4157043421 in words is "four billion, one hundred fifty-seven million, forty-three thousand, four hundred twenty-one".