420346135 has 24 divisors (see below), whose sum is σ = 558280800. Its totient is φ = 303589440.

The previous prime is 420346133. The next prime is 420346151. The reversal of 420346135 is 531643024.

It is not a de Polignac number, because 420346135 - 2¹ = 420346133 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420346133) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 87814 + ... + 92476.

It is an arithmetic number, because the mean of its divisors is an integer number (23261700).

Almost surely, 2^420346135 is an apocalyptic number.

420346135 is a deficient number, since it is larger than the sum of its proper divisors (137934665).

420346135 is a wasteful number, since it uses less digits than its factorization.

420346135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4839 (or 4828 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 420346135 is about 20502.3446220182. The cubic root of 420346135 is about 749.0929092835.

Adding to 420346135 its reverse (531643024), we get a palindrome (951989159).

The spelling of 420346135 in words is "four hundred twenty million, three hundred forty-six thousand, one hundred thirty-five".