423240394722 has 16 divisors (see below), whose sum is σ = 846533660160. Its totient is φ = 141071319792.

The previous prime is 423240394679. The next prime is 423240394979. The reversal of 423240394722 is 227493042324.

It is a super-3 number, since 3×423240394722³ (a number of 36 digits) contains 333 as substring.

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, 2098498 + ... + 2291325.

It is an arithmetic number, because the mean of its divisors is an integer number (52908353760).

Almost surely, 2^423240394722 is an apocalyptic number.

423240394722 is an abundant number, since it is smaller than the sum of its proper divisors (423293265438).

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

423240394722 is a wasteful number, since it uses less digits than its factorization.

423240394722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4405897.

The product of its (nonzero) digits is 580608, while the sum is 42.

The spelling of 423240394722 in words is "four hundred twenty-three billion, two hundred forty million, three hundred ninety-four thousand, seven hundred twenty-two".