421303542 has 32 divisors (see below), whose sum is σ = 934796160. Its totient is φ = 125502720.

The previous prime is 421303523. The next prime is 421303567. The reversal of 421303542 is 245303124.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50203 + ... + 57990.

It is an arithmetic number, because the mean of its divisors is an integer number (29212380).

Almost surely, 2^421303542 is an apocalyptic number.

421303542 is an abundant number, since it is smaller than the sum of its proper divisors (513492618).

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

421303542 is a wasteful number, since it uses less digits than its factorization.

421303542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108268.

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 421303542 is about 20525.6800618152. The cubic root of 421303542 is about 749.6612052027.

Adding to 421303542 its reverse (245303124), we get a palindrome (666606666).

The spelling of 421303542 in words is "four hundred twenty-one million, three hundred three thousand, five hundred forty-two".