420641774 has 24 divisors (see below), whose sum is σ = 734959368. Its totient is φ = 180033840.

The previous prime is 420641773. The next prime is 420641801. The reversal of 420641774 is 477146024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420641773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 84104 + ... + 88964.

It is an arithmetic number, because the mean of its divisors is an integer number (30623307).

Almost surely, 2^420641774 is an apocalyptic number.

420641774 is a deficient number, since it is larger than the sum of its proper divisors (314317594).

420641774 is a wasteful number, since it uses less digits than its factorization.

420641774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5760 (or 5753 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 35.

The square root of 420641774 is about 20509.5532374550. The cubic root of 420641774 is about 749.2684861560.

Adding to 420641774 its reverse (477146024), we get a palindrome (897787798).

The spelling of 420641774 in words is "four hundred twenty million, six hundred forty-one thousand, seven hundred seventy-four".