4021709408 has 12 divisors (see below), whose sum is σ = 7917740460. Its totient is φ = 2010854688.

The previous prime is 4021709407. The next prime is 4021709429. The reversal of 4021709408 is 8049071204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4021709407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62839178 + ... + 62839241.

It is an arithmetic number, because the mean of its divisors is an integer number (659811705).

Almost surely, 2^4021709408 is an apocalyptic number.

It is an amenable number.

4021709408 is a deficient number, since it is larger than the sum of its proper divisors (3896031052).

4021709408 is a wasteful number, since it uses less digits than its factorization.

4021709408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125678429 (or 125678421 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 4021709408 is about 63416.9489016935. The cubic root of 4021709408 is about 1590.2676669213.

The spelling of 4021709408 in words is "four billion, twenty-one million, seven hundred nine thousand, four hundred eight".