420132443 has 4 divisors (see below), whose sum is σ = 421068600. Its totient is φ = 419196288.

The previous prime is 420132409. The next prime is 420132499. The reversal of 420132443 is 344231024.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 420132443 - 2⁶ = 420132379 is a prime.

It is a super-2 number, since 2×420132443² = 353022539322296498, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (420131443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 467405 + ... + 468302.

It is an arithmetic number, because the mean of its divisors is an integer number (105267150).

Almost surely, 2^420132443 is an apocalyptic number.

420132443 is a deficient number, since it is larger than the sum of its proper divisors (936157).

420132443 is an equidigital number, since it uses as much as digits as its factorization.

420132443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 936156.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 420132443 is about 20497.1325555552. The cubic root of 420132443 is about 748.9659486018.

Adding to 420132443 its reverse (344231024), we get a palindrome (764363467).

The spelling of 420132443 in words is "four hundred twenty million, one hundred thirty-two thousand, four hundred forty-three".