420312342 has 32 divisors (see below), whose sum is σ = 861696000. Its totient is φ = 136630368.

The previous prime is 420312329. The next prime is 420312359. The reversal of 420312342 is 243213024.

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, 40284 + ... + 49632.

It is an arithmetic number, because the mean of its divisors is an integer number (26928000).

Almost surely, 2^420312342 is an apocalyptic number.

420312342 is an abundant number, since it is smaller than the sum of its proper divisors (441383658).

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

420312342 is a wasteful number, since it uses less digits than its factorization.

420312342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9540.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 420312342 is about 20501.5204801985. The cubic root of 420312342 is about 749.0728347362.

Adding to 420312342 its reverse (243213024), we get a palindrome (663525366).

The spelling of 420312342 in words is "four hundred twenty million, three hundred twelve thousand, three hundred forty-two".