421826755 has 16 divisors (see below), whose sum is σ = 579478464. Its totient is φ = 288766080.

The previous prime is 421826753. The next prime is 421826761. The reversal of 421826755 is 557628124.

It is not a de Polignac number, because 421826755 - 2¹ = 421826753 is a prime.

It is a super-2 number, since 2×421826755² = 355875622467660050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (421826753) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11625 + ... + 31285.

It is an arithmetic number, because the mean of its divisors is an integer number (36217404).

Almost surely, 2^421826755 is an apocalyptic number.

421826755 is a deficient number, since it is larger than the sum of its proper divisors (157651709).

421826755 is a wasteful number, since it uses less digits than its factorization.

421826755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20286.

The product of its digits is 134400, while the sum is 40.

The square root of 421826755 is about 20538.4214339856. The cubic root of 421826755 is about 749.9714092805.

The spelling of 421826755 in words is "four hundred twenty-one million, eight hundred twenty-six thousand, seven hundred fifty-five".