4021043004 has 72 divisors (see below), whose sum is σ = 11346246912. Its totient is φ = 1190155680.

The previous prime is 4021043003. The next prime is 4021043069. The reversal of 4021043004 is 4003401204.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4021043003) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 101044 + ... + 135099.

Almost surely, 2^4021043004 is an apocalyptic number.

4021043004 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

4021043004 is an abundant number, since it is smaller than the sum of its proper divisors (7325203908).

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

4021043004 is a wasteful number, since it uses less digits than its factorization.

4021043004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236207 (or 236202 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 4021043004 is about 63411.6945365758. The cubic root of 4021043004 is about 1590.1798253953.

Adding to 4021043004 its reverse (4003401204), we get a palindrome (8024444208).

The spelling of 4021043004 in words is "four billion, twenty-one million, forty-three thousand, four".