3420342531 has 40 divisors (see below), whose sum is σ = 5177541600. Its totient is φ = 2250035712.

The previous prime is 3420342451. The next prime is 3420342577. The reversal of 3420342531 is 1352430243.

3420342531 is a `hidden beast` number, since 3 + 4 + 203 + 425 + 31 = 666.

3420342531 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3420342531 - 2¹⁸ = 3420080387 is a prime.

It is a super-2 number, since 2×3420342531² = 23397486058734971922, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 3420342495 and 3420342504.

It is not an unprimeable number, because it can be changed into a prime (3420342031) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2014675 + ... + 2016371.

It is an arithmetic number, because the mean of its divisors is an integer number (129438540).

Almost surely, 2^3420342531 is an apocalyptic number.

3420342531 is a deficient number, since it is larger than the sum of its proper divisors (1757199069).

3420342531 is a wasteful number, since it uses less digits than its factorization.

3420342531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2025 (or 2016 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 27.

The square root of 3420342531 is about 58483.6945737870. The cubic root of 3420342531 is about 1506.6875521215.

Adding to 3420342531 its reverse (1352430243), we get a palindrome (4772772774).

The spelling of 3420342531 in words is "three billion, four hundred twenty million, three hundred forty-two thousand, five hundred thirty-one".