3401425021 has 4 divisors (see below), whose sum is σ = 3416678272. Its totient is φ = 3386171772.

The previous prime is 3401425019. The next prime is 3401425031. The reversal of 3401425021 is 1205241043.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1205241043 = 41 ⋅29396123.

It is a cyclic number.

It is not a de Polignac number, because 3401425021 - 2¹ = 3401425019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3401424983 and 3401425001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3401425031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7626291 + ... + 7626736.

It is an arithmetic number, because the mean of its divisors is an integer number (854169568).

Almost surely, 2^3401425021 is an apocalyptic number.

It is an amenable number.

3401425021 is a deficient number, since it is larger than the sum of its proper divisors (15253251).

3401425021 is a wasteful number, since it uses less digits than its factorization.

3401425021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15253250.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 3401425021 is about 58321.7371226201. The cubic root of 3401425021 is about 1503.9046449384.

Adding to 3401425021 its reverse (1205241043), we get a palindrome (4606666064).

The spelling of 3401425021 in words is "three billion, four hundred one million, four hundred twenty-five thousand, twenty-one".