420201775 has 24 divisors (see below), whose sum is σ = 599179904. Its totient is φ = 286351200.

The previous prime is 420201721. The next prime is 420201791. The reversal of 420201775 is 577102024.

It is not a de Polignac number, because 420201775 - 2⁹ = 420201263 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21160 + ... + 35890.

Almost surely, 2^420201775 is an apocalyptic number.

420201775 is a deficient number, since it is larger than the sum of its proper divisors (178978129).

420201775 is a wasteful number, since it uses less digits than its factorization.

420201775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14911 (or 14906 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 28.

The square root of 420201775 is about 20498.8237467422. The cubic root of 420201775 is about 749.0071454925.

Adding to 420201775 its reverse (577102024), we get a palindrome (997303799).

The spelling of 420201775 in words is "four hundred twenty million, two hundred one thousand, seven hundred seventy-five".