3400200421 has 2 divisors, whose sum is σ = 3400200422. Its totient is φ = 3400200420.

The previous prime is 3400200409. The next prime is 3400200449. The reversal of 3400200421 is 1240020043.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1961515521 + 1438684900 = 44289^2 + 37930^2 .

It is an emirp because it is prime and its reverse (1240020043) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3400200421 - 2⁵ = 3400200389 is a prime.

It is a super-2 number, since 2×3400200421² = 23122725805937154482, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3400200395 and 3400200404.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3400200121) by changing a digit.

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 as a sum of consecutive naturals, namely, 1700100210 + 1700100211.

It is an arithmetic number, because the mean of its divisors is an integer number (1700100211).

Almost surely, 2^3400200421 is an apocalyptic number.

It is an amenable number.

3400200421 is a deficient number, since it is larger than the sum of its proper divisors (1).

3400200421 is an equidigital number, since it uses as much as digits as its factorization.

3400200421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 3400200421 is about 58311.2375190237. The cubic root of 3400200421 is about 1503.7241418965.

Adding to 3400200421 its reverse (1240020043), we get a palindrome (4640220464).

It can be divided in two parts, 340020042 and 1, that added together give a palindrome (340020043).

The spelling of 3400200421 in words is "three billion, four hundred million, two hundred thousand, four hundred twenty-one".