420554241 has 32 divisors (see below), whose sum is σ = 659109120. Its totient is φ = 264477312.

The previous prime is 420554231. The next prime is 420554249. The reversal of 420554241 is 142455024.

It is not a de Polignac number, because 420554241 - 2²⁶ = 353445377 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (420554249) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 40695 + ... + 49971.

It is an arithmetic number, because the mean of its divisors is an integer number (20597160).

Almost surely, 2^420554241 is an apocalyptic number.

It is an amenable number.

420554241 is a deficient number, since it is larger than the sum of its proper divisors (238554879).

420554241 is a wasteful number, since it uses less digits than its factorization.

420554241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9382 (or 9376 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 27.

The square root of 420554241 is about 20507.4191696566. The cubic root of 420554241 is about 749.2165098092.

The spelling of 420554241 in words is "four hundred twenty million, five hundred fifty-four thousand, two hundred forty-one".