3420431 has 4 divisors (see below), whose sum is σ = 3909072. Its totient is φ = 2931792.

The previous prime is 3420427. The next prime is 3420433. The reversal of 3420431 is 1340243.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3420431 - 2² = 3420427 is a prime.

It is a super-2 number, since 2×3420431² = 23398696451522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3420433) 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, 244310 + ... + 244323.

It is an arithmetic number, because the mean of its divisors is an integer number (977268).

Almost surely, 2^3420431 is an apocalyptic number.

3420431 is a deficient number, since it is larger than the sum of its proper divisors (488641).

3420431 is an equidigital number, since it uses as much as digits as its factorization.

3420431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488640.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 3420431 is about 1849.4407262738. The cubic root of 3420431 is about 150.6700542438.

Adding to 3420431 its reverse (1340243), we get a palindrome (4760674).

The spelling of 3420431 in words is "three million, four hundred twenty thousand, four hundred thirty-one".