420019532 has 24 divisors (see below), whose sum is σ = 743340864. Its totient is φ = 207649152.

The previous prime is 420019489. The next prime is 420019543. The reversal of 420019532 is 235910024.

It is a super-2 number, since 2×420019532² = 352832814522998048, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 150413 + ... + 153179.

It is an arithmetic number, because the mean of its divisors is an integer number (30972536).

Almost surely, 2^420019532 is an apocalyptic number.

It is an amenable number.

420019532 is a deficient number, since it is larger than the sum of its proper divisors (323321332).

420019532 is a wasteful number, since it uses less digits than its factorization.

420019532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3185 (or 3183 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 420019532 is about 20494.3780583847. The cubic root of 420019532 is about 748.8988474828.

Adding to 420019532 its reverse (235910024), we get a palindrome (655929556).

It can be divided in two parts, 4200 and 19532, that added together give a palindrome (23732).

The spelling of 420019532 in words is "four hundred twenty million, nineteen thousand, five hundred thirty-two".