421287741 has 72 divisors (see below), whose sum is σ = 752618880. Its totient is φ = 225783936.

The previous prime is 421287721. The next prime is 421287749. The reversal of 421287741 is 147782124.

It is not a de Polignac number, because 421287741 - 2¹⁰ = 421286717 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 421287696 and 421287705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421287749) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1147740 + ... + 1148106.

It is an arithmetic number, because the mean of its divisors is an integer number (10453040).

Almost surely, 2^421287741 is an apocalyptic number.

It is an amenable number.

421287741 is a deficient number, since it is larger than the sum of its proper divisors (331331139).

421287741 is a wasteful number, since it uses less digits than its factorization.

421287741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 543 (or 533 counting only the distinct ones).

The product of its digits is 25088, while the sum is 36.

The square root of 421287741 is about 20525.2951501312. The cubic root of 421287741 is about 749.6518330647.

The spelling of 421287741 in words is "four hundred twenty-one million, two hundred eighty-seven thousand, seven hundred forty-one".