3252400421 has 2 divisors, whose sum is σ = 3252400422. Its totient is φ = 3252400420.

The previous prime is 3252400387. The next prime is 3252400493. The reversal of 3252400421 is 1240042523.

It is a happy number.

3252400421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2628100225 + 624300196 = 51265^2 + 24986^2 .

It is a cyclic number.

It is not a de Polignac number, because 3252400421 - 2⁶ = 3252400357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3252400321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1626200210 + 1626200211.

It is an arithmetic number, because the mean of its divisors is an integer number (1626200211).

Almost surely, 2^3252400421 is an apocalyptic number.

It is an amenable number.

3252400421 is a deficient number, since it is larger than the sum of its proper divisors (1).

3252400421 is an equidigital number, since it uses as much as digits as its factorization.

3252400421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 3252400421 is about 57029.8204538643. The cubic root of 3252400421 is about 1481.6126233179.

Adding to 3252400421 its reverse (1240042523), we get a palindrome (4492442944).

The spelling of 3252400421 in words is "three billion, two hundred fifty-two million, four hundred thousand, four hundred twenty-one".