420523632 has 30 divisors (see below), whose sum is σ = 1176882512. Its totient is φ = 140174496.

The previous prime is 420523603. The next prime is 420523661. The reversal of 420523632 is 236325024.

420523632 is a `hidden beast` number, since 4 + 2 + 0 + 5 + 23 + 632 = 666.

It is an interprime number because it is at equal distance from previous prime (420523603) and next prime (420523661).

It is a junction number, because it is equal to n+sod(n) for n = 420523596 and 420523605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1460008 + ... + 1460295.

Almost surely, 2^420523632 is an apocalyptic number.

It is an amenable number.

420523632 is an abundant number, since it is smaller than the sum of its proper divisors (756358880).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

420523632 is a wasteful number, since it uses less digits than its factorization.

420523632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2920317 (or 2920308 counting only the distinct ones).

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

The square root of 420523632 is about 20506.6728651920. The cubic root of 420523632 is about 749.1983327448.

Adding to 420523632 its reverse (236325024), we get a palindrome (656848656).

The spelling of 420523632 in words is "four hundred twenty million, five hundred twenty-three thousand, six hundred thirty-two".