420044411 has 4 divisors (see below), whose sum is σ = 421019424. Its totient is φ = 419069400.

The previous prime is 420044407. The next prime is 420044431. The reversal of 420044411 is 114440024.

It is a happy number.

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 420044411 - 2² = 420044407 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (420044431) 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, 486860 + ... + 487721.

It is an arithmetic number, because the mean of its divisors is an integer number (105254856).

Almost surely, 2^420044411 is an apocalyptic number.

420044411 is a deficient number, since it is larger than the sum of its proper divisors (975013).

420044411 is an equidigital number, since it uses as much as digits as its factorization.

420044411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 975012.

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 420044411 is about 20494.9850207313. The cubic root of 420044411 is about 748.9136336893.

Adding to 420044411 its reverse (114440024), we get a palindrome (534484435).

The spelling of 420044411 in words is "four hundred twenty million, forty-four thousand, four hundred eleven".