426003621 has 16 divisors (see below), whose sum is σ = 584621568. Its totient is φ = 275814000.

The previous prime is 426003619. The next prime is 426003637. The reversal of 426003621 is 126300624.

It is not a de Polignac number, because 426003621 - 2¹ = 426003619 is a prime.

It is a super-2 number, since 2×426003621² = 362958170210223282, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 426003591 and 426003600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (426003601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 655 + ... + 29196.

It is an arithmetic number, because the mean of its divisors is an integer number (36538848).

Almost surely, 2^426003621 is an apocalyptic number.

It is an amenable number.

426003621 is a deficient number, since it is larger than the sum of its proper divisors (158617947).

426003621 is a wasteful number, since it uses less digits than its factorization.

426003621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29992.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 426003621 is about 20639.8551593755. The cubic root of 426003621 is about 752.4386522615.

It can be divided in two parts, 426003 and 621, that added together give a palindrome (426624).

The spelling of 426003621 in words is "four hundred twenty-six million, three thousand, six hundred twenty-one".