4021969398 has 32 divisors (see below), whose sum is σ = 8193077376. Its totient is φ = 1315942848.

The previous prime is 4021969349. The next prime is 4021969403. The reversal of 4021969398 is 8939691204.

It is a self number, because there is not a number n which added to its sum of digits gives 4021969398.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96090 + ... + 131442.

It is an arithmetic number, because the mean of its divisors is an integer number (256033668).

Almost surely, 2^4021969398 is an apocalyptic number.

4021969398 is an abundant number, since it is smaller than the sum of its proper divisors (4171107978).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4021969398 is a wasteful number, since it uses less digits than its factorization.

4021969398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35708.

The product of its (nonzero) digits is 839808, while the sum is 51.

The square root of 4021969398 is about 63418.9987148962. The cubic root of 4021969398 is about 1590.3019346700.

The spelling of 4021969398 in words is "four billion, twenty-one million, nine hundred sixty-nine thousand, three hundred ninety-eight".