34002021405 has 32 divisors (see below), whose sum is σ = 59373089280. Its totient is φ = 16479132480.

The previous prime is 34002021367. The next prime is 34002021409. The reversal of 34002021405 is 50412020043.

It is not a de Polignac number, because 34002021405 - 2⁶ = 34002021341 is a prime.

It is a super-2 number, since 2×34002021405² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34002021409) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 378354 + ... + 459516.

It is an arithmetic number, because the mean of its divisors is an integer number (1855409040).

Almost surely, 2^34002021405 is an apocalyptic number.

It is an amenable number.

34002021405 is a deficient number, since it is larger than the sum of its proper divisors (25371067875).

34002021405 is a wasteful number, since it uses less digits than its factorization.

34002021405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83721.

The product of its (nonzero) digits is 960, while the sum is 21.

Adding to 34002021405 its reverse (50412020043), we get a palindrome (84414041448).

The spelling of 34002021405 in words is "thirty-four billion, two million, twenty-one thousand, four hundred five".