4021213408 has 48 divisors (see below), whose sum is σ = 7974517824. Its totient is φ = 1996001280.

The previous prime is 4021213393. The next prime is 4021213429. The reversal of 4021213408 is 8043121204.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3029641 + ... + 3030967.

It is an arithmetic number, because the mean of its divisors is an integer number (166135788).

Almost surely, 2^4021213408 is an apocalyptic number.

It is an amenable number.

4021213408 is a deficient number, since it is larger than the sum of its proper divisors (3953304416).

4021213408 is a wasteful number, since it uses less digits than its factorization.

4021213408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1955 (or 1947 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 4021213408 is about 63413.0381546256. The cubic root of 4021213408 is about 1590.2022879898.

The spelling of 4021213408 in words is "four billion, twenty-one million, two hundred thirteen thousand, four hundred eight".