420401342 has 8 divisors (see below), whose sum is σ = 652347000. Its totient is φ = 202952344.

The previous prime is 420401341. The next prime is 420401389. The reversal of 420401342 is 243104024.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420401341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3624092 + ... + 3624207.

It is an arithmetic number, because the mean of its divisors is an integer number (81543375).

Almost surely, 2^420401342 is an apocalyptic number.

420401342 is a deficient number, since it is larger than the sum of its proper divisors (231945658).

420401342 is a wasteful number, since it uses less digits than its factorization.

420401342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7248330.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 420401342 is about 20503.6909360242. The cubic root of 420401342 is about 749.1257023861.

Adding to 420401342 its reverse (243104024), we get a palindrome (663505366).

The spelling of 420401342 in words is "four hundred twenty million, four hundred one thousand, three hundred forty-two".