421130552 has 48 divisors (see below), whose sum is σ = 831358080. Its totient is φ = 199971200.

The previous prime is 421130543. The next prime is 421130569. The reversal of 421130552 is 255031124.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 808052 + ... + 808572.

It is an arithmetic number, because the mean of its divisors is an integer number (17319960).

Almost surely, 2^421130552 is an apocalyptic number.

It is an amenable number.

421130552 is a deficient number, since it is larger than the sum of its proper divisors (410227528).

421130552 is a wasteful number, since it uses less digits than its factorization.

421130552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 764 (or 737 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 421130552 is about 20521.4656396662. The cubic root of 421130552 is about 749.5585858854.

Adding to 421130552 its reverse (255031124), we get a palindrome (676161676).

The spelling of 421130552 in words is "four hundred twenty-one million, one hundred thirty thousand, five hundred fifty-two".