4006754421 has 16 divisors (see below), whose sum is σ = 5399267328. Its totient is φ = 2642770800.

The previous prime is 4006754413. The next prime is 4006754449. The reversal of 4006754421 is 1244576004.

It is not a de Polignac number, because 4006754421 - 2³ = 4006754413 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4006754461) 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, 252636 + ... + 268026.

It is an arithmetic number, because the mean of its divisors is an integer number (337454208).

Almost surely, 2^4006754421 is an apocalyptic number.

It is an amenable number.

4006754421 is a deficient number, since it is larger than the sum of its proper divisors (1392512907).

4006754421 is a wasteful number, since it uses less digits than its factorization.

4006754421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16312.

The product of its (nonzero) digits is 26880, while the sum is 33.

The square root of 4006754421 is about 63298.9290667702. The cubic root of 4006754421 is about 1588.2940474344.

The spelling of 4006754421 in words is "four billion, six million, seven hundred fifty-four thousand, four hundred twenty-one".