421352542 has 32 divisors (see below), whose sum is σ = 709430400. Its totient is φ = 186348288.

The previous prime is 421352539. The next prime is 421352543. The reversal of 421352542 is 245253124.

It is a self number, because there is not a number n which added to its sum of digits gives 421352542.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421352543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 101259 + ... + 105337.

It is an arithmetic number, because the mean of its divisors is an integer number (22169700).

Almost surely, 2^421352542 is an apocalyptic number.

421352542 is a deficient number, since it is larger than the sum of its proper divisors (288077858).

421352542 is a wasteful number, since it uses less digits than its factorization.

421352542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4260.

The product of its digits is 9600, while the sum is 28.

The square root of 421352542 is about 20526.8736538227. The cubic root of 421352542 is about 749.6902673645.

The spelling of 421352542 in words is "four hundred twenty-one million, three hundred fifty-two thousand, five hundred forty-two".