420434331 has 8 divisors (see below), whose sum is σ = 560758800. Its totient is φ = 280199712.

The previous prime is 420434323. The next prime is 420434341. The reversal of 420434331 is 133434024.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 420434331 - 2³ = 420434323 is a prime.

It is a super-2 number, since 2×420434331² = 353530053366835122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (420434321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10656 + ... + 30893.

It is an arithmetic number, because the mean of its divisors is an integer number (70094850).

Almost surely, 2^420434331 is an apocalyptic number.

420434331 is a deficient number, since it is larger than the sum of its proper divisors (140324469).

420434331 is a wasteful number, since it uses less digits than its factorization.

420434331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44925.

The product of its (nonzero) digits is 3456, while the sum is 24.

The square root of 420434331 is about 20504.4953851588. The cubic root of 420434331 is about 749.1452965683.

Adding to 420434331 its reverse (133434024), we get a palindrome (553868355).

The spelling of 420434331 in words is "four hundred twenty million, four hundred thirty-four thousand, three hundred thirty-one".