420044401 has 16 divisors (see below), whose sum is σ = 485388288. Its totient is φ = 356058000.

The previous prime is 420044399. The next prime is 420044407. The reversal of 420044401 is 104440024.

It is not a de Polignac number, because 420044401 - 2¹ = 420044399 is a prime.

It is a super-2 number, since 2×420044401² = 352874597622897602, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (420044407) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 277236 + ... + 278746.

It is an arithmetic number, because the mean of its divisors is an integer number (30336768).

Almost surely, 2^420044401 is an apocalyptic number.

It is an amenable number.

420044401 is a deficient number, since it is larger than the sum of its proper divisors (65343887).

420044401 is a wasteful number, since it uses less digits than its factorization.

420044401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1932.

The product of its (nonzero) digits is 512, while the sum is 19.

The square root of 420044401 is about 20494.9847767692. The cubic root of 420044401 is about 748.9136277461.

Adding to 420044401 its reverse (104440024), we get a palindrome (524484425).

The spelling of 420044401 in words is "four hundred twenty million, forty-four thousand, four hundred one".