3504251421 has 12 divisors (see below), whose sum is σ = 5521850880. Its totient is φ = 2123788680.

The previous prime is 3504251419. The next prime is 3504251431. The reversal of 3504251421 is 1241524053.

3504251421 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3504251421 - 2¹ = 3504251419 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3504251431) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17698141 + ... + 17698338.

It is an arithmetic number, because the mean of its divisors is an integer number (460154240).

Almost surely, 2^3504251421 is an apocalyptic number.

It is an amenable number.

3504251421 is a deficient number, since it is larger than the sum of its proper divisors (2017599459).

3504251421 is a wasteful number, since it uses less digits than its factorization.

3504251421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35396496 (or 35396493 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 3504251421 is about 59196.7179917941. The cubic root of 3504251421 is about 1518.9089904377.

Adding to 3504251421 its reverse (1241524053), we get a palindrome (4745775474).

The spelling of 3504251421 in words is "three billion, five hundred four million, two hundred fifty-one thousand, four hundred twenty-one".