423021342 has 16 divisors (see below), whose sum is σ = 846374400. Its totient is φ = 140951832.

The previous prime is 423021329. The next prime is 423021371. The reversal of 423021342 is 243120324.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4659 + ... + 29457.

It is an arithmetic number, because the mean of its divisors is an integer number (52898400).

Almost surely, 2^423021342 is an apocalyptic number.

423021342 is an abundant number, since it is smaller than the sum of its proper divisors (423353058).

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

423021342 is a wasteful number, since it uses less digits than its factorization.

423021342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27647.

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

The square root of 423021342 is about 20567.4826364337. The cubic root of 423021342 is about 750.6786994153.

Adding to 423021342 its reverse (243120324), we get a palindrome (666141666).

The spelling of 423021342 in words is "four hundred twenty-three million, twenty-one thousand, three hundred forty-two".