421132554 has 16 divisors (see below), whose sum is σ = 935850240. Its totient is φ = 140377500.

The previous prime is 421132531. The next prime is 421132571. The reversal of 421132554 is 455231124.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3899322 + ... + 3899429.

It is an arithmetic number, because the mean of its divisors is an integer number (58490640).

Almost surely, 2^421132554 is an apocalyptic number.

421132554 is an abundant number, since it is smaller than the sum of its proper divisors (514717686).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

421132554 is a wasteful number, since it uses less digits than its factorization.

421132554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7798762 (or 7798756 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 421132554 is about 20521.5144178007. The cubic root of 421132554 is about 749.5597736516.

Adding to 421132554 its reverse (455231124), we get a palindrome (876363678).

The spelling of 421132554 in words is "four hundred twenty-one million, one hundred thirty-two thousand, five hundred fifty-four".