4021647026 has 16 divisors (see below), whose sum is σ = 6164259840. Its totient is φ = 1966941600.

The previous prime is 4021647013. The next prime is 4021647121. The reversal of 4021647026 is 6207461204.

It is a junction number, because it is equal to n+sod(n) for n = 4021646983 and 4021647001.

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, 172430 + ... + 194358.

It is an arithmetic number, because the mean of its divisors is an integer number (385266240).

Almost surely, 2^4021647026 is an apocalyptic number.

4021647026 is a deficient number, since it is larger than the sum of its proper divisors (2142612814).

4021647026 is a wasteful number, since it uses less digits than its factorization.

4021647026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23929.

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 4021647026 is about 63416.4570596624. The cubic root of 4021647026 is about 1590.2594444981.

The spelling of 4021647026 in words is "four billion, twenty-one million, six hundred forty-seven thousand, twenty-six".