4256420631 has 8 divisors (see below), whose sum is σ = 5675529600. Its totient is φ = 2837462712.

The previous prime is 4256420591. The next prime is 4256420647. The reversal of 4256420631 is 1360246524.

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

It is not a de Polignac number, because 4256420631 - 2¹⁴ = 4256404247 is a prime.

It is a super-2 number, since 2×4256420631² = 36234233176004876322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4256420592 and 4256420601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4256420681) 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, 85086 + ... + 125508.

It is an arithmetic number, because the mean of its divisors is an integer number (709441200).

Almost surely, 2^4256420631 is an apocalyptic number.

4256420631 is a deficient number, since it is larger than the sum of its proper divisors (1419108969).

4256420631 is a wasteful number, since it uses less digits than its factorization.

4256420631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75525.

The product of its (nonzero) digits is 34560, while the sum is 33.

The square root of 4256420631 is about 65241.2494592187. The cubic root of 4256420631 is about 1620.6211902906.

The spelling of 4256420631 in words is "four billion, two hundred fifty-six million, four hundred twenty thousand, six hundred thirty-one".