421353542 has 4 divisors (see below), whose sum is σ = 632030316. Its totient is φ = 210676770.

The previous prime is 421353529. The next prime is 421353563. The reversal of 421353542 is 245353124.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105338384 + ... + 105338387.

It is an arithmetic number, because the mean of its divisors is an integer number (158007579).

Almost surely, 2^421353542 is an apocalyptic number.

421353542 is a deficient number, since it is larger than the sum of its proper divisors (210676774).

421353542 is a wasteful number, since it uses less digits than its factorization.

421353542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210676773.

The product of its digits is 14400, while the sum is 29.

The square root of 421353542 is about 20526.8980121206. The cubic root of 421353542 is about 749.6908604463.

The spelling of 421353542 in words is "four hundred twenty-one million, three hundred fifty-three thousand, five hundred forty-two".