4014021309 has 16 divisors (see below), whose sum is σ = 5397504000. Its totient is φ = 2653302960.

The previous prime is 4014021299. The next prime is 4014021313. The reversal of 4014021309 is 9031204104.

It is not a de Polignac number, because 4014021309 - 2¹⁶ = 4013955773 is a prime.

It is a super-2 number, since 2×4014021309² = 32224734138212146962, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4014021359) 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, 1145442 + ... + 1148940.

It is an arithmetic number, because the mean of its divisors is an integer number (337344000).

Almost surely, 2^4014021309 is an apocalyptic number.

It is an amenable number.

4014021309 is a deficient number, since it is larger than the sum of its proper divisors (1383482691).

4014021309 is a wasteful number, since it uses less digits than its factorization.

4014021309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6640.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 4014021309 is about 63356.3044140045. The cubic root of 4014021309 is about 1589.2536756887.

The spelling of 4014021309 in words is "four billion, fourteen million, twenty-one thousand, three hundred nine".