420402411 has 48 divisors (see below), whose sum is σ = 717050880. Its totient is φ = 233991360.

The previous prime is 420402407. The next prime is 420402467. The reversal of 420402411 is 114204024.

420402411 is a `hidden beast` number, since 420 + 4 + 0 + 241 + 1 = 666.

It is not a de Polignac number, because 420402411 - 2² = 420402407 is a prime.

It is a super-2 number, since 2×420402411² = 353476374349225842, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (420402491) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 291430 + ... + 292868.

It is an arithmetic number, because the mean of its divisors is an integer number (14938560).

Almost surely, 2^420402411 is an apocalyptic number.

420402411 is a deficient number, since it is larger than the sum of its proper divisors (296648469).

420402411 is a wasteful number, since it uses less digits than its factorization.

420402411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1696 (or 1693 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 420402411 is about 20503.7170044848. The cubic root of 420402411 is about 749.1263373466.

Adding to 420402411 its reverse (114204024), we get a palindrome (534606435).

It can be divided in two parts, 4204024 and 11, that multiplied together give a palindrome (46244264).

The spelling of 420402411 in words is "four hundred twenty million, four hundred two thousand, four hundred eleven".