40320420234 has 8 divisors (see below), whose sum is σ = 80640840480. Its totient is φ = 13440140076.

The previous prime is 40320420211. The next prime is 40320420241. The reversal of 40320420234 is 43202402304.

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

40320420234 is an admirable number.

It is a super-2 number, since 2×40320420234² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3360035014 + ... + 3360035025.

It is an arithmetic number, because the mean of its divisors is an integer number (10080105060).

Almost surely, 2^40320420234 is an apocalyptic number.

40320420234 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

40320420234 is a wasteful number, since it uses less digits than its factorization.

40320420234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6720070044.

The product of its (nonzero) digits is 4608, while the sum is 24.

Adding to 40320420234 its reverse (43202402304), we get a palindrome (83522822538).

The spelling of 40320420234 in words is "forty billion, three hundred twenty million, four hundred twenty thousand, two hundred thirty-four".