4019421852 has 30 divisors (see below), whose sum is σ = 10507563528. Its totient is φ = 1339807176.

The previous prime is 4019421817. The next prime is 4019421863. The reversal of 4019421852 is 2581249104.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 6202488 + ... + 6203135.

Almost surely, 2^4019421852 is an apocalyptic number.

It is an amenable number.

4019421852 is an abundant number, since it is smaller than the sum of its proper divisors (6488141676).

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

4019421852 is a wasteful number, since it uses less digits than its factorization.

4019421852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12405639 (or 12405628 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 4019421852 is about 63398.9104953705. The cubic root of 4019421852 is about 1589.9660939726.

The spelling of 4019421852 in words is "four billion, nineteen million, four hundred twenty-one thousand, eight hundred fifty-two".