420255039 has 8 divisors (see below), whose sum is σ = 573371392. Its totient is φ = 273654360.

The previous prime is 420255013. The next prime is 420255049. The reversal of 420255039 is 930552024.

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

It is not a de Polignac number, because 420255039 - 2⁷ = 420254911 is a prime.

It is a super-2 number, since 2×420255039² = 353228595609783042, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 420254997 and 420255015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420255049) 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, 1628767 + ... + 1629024.

It is an arithmetic number, because the mean of its divisors is an integer number (71671424).

Almost surely, 2^420255039 is an apocalyptic number.

420255039 is a deficient number, since it is larger than the sum of its proper divisors (153116353).

420255039 is a wasteful number, since it uses less digits than its factorization.

420255039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3257837.

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 420255039 is about 20500.1229020706. The cubic root of 420255039 is about 749.0387917423.

The spelling of 420255039 in words is "four hundred twenty million, two hundred fifty-five thousand, thirty-nine".