4021042015 has 8 divisors (see below), whose sum is σ = 4937465808. Its totient is φ = 3142023360.

The previous prime is 4021041971. The next prime is 4021042031. The reversal of 4021042015 is 5102401204.

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

It is not a de Polignac number, because 4021042015 - 2¹³ = 4021033823 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4021041983 and 4021042001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9351046 + ... + 9351475.

It is an arithmetic number, because the mean of its divisors is an integer number (617183226).

Almost surely, 2^4021042015 is an apocalyptic number.

4021042015 is a deficient number, since it is larger than the sum of its proper divisors (916423793).

4021042015 is a wasteful number, since it uses less digits than its factorization.

4021042015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18702569.

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 4021042015 is about 63411.6867383292. The cubic root of 4021042015 is about 1590.1796950239.

Adding to 4021042015 its reverse (5102401204), we get a palindrome (9123443219).

The spelling of 4021042015 in words is "four billion, twenty-one million, forty-two thousand, fifteen".