40232321421 has 8 divisors (see below), whose sum is σ = 53644320864. Its totient is φ = 26820934800.

The previous prime is 40232321417. The next prime is 40232321429. The reversal of 40232321421 is 12412323204.

It is a happy number.

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

It is not a de Polignac number, because 40232321421 - 2² = 40232321417 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40232321391 and 40232321400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40232321429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31950 + ... + 285456.

It is an arithmetic number, because the mean of its divisors is an integer number (6705540108).

Almost surely, 2^40232321421 is an apocalyptic number.

It is an amenable number.

40232321421 is a deficient number, since it is larger than the sum of its proper divisors (13411999443).

40232321421 is a wasteful number, since it uses less digits than its factorization.

40232321421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306411.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 40232321421 its reverse (12412323204), we get a palindrome (52644644625).

The spelling of 40232321421 in words is "forty billion, two hundred thirty-two million, three hundred twenty-one thousand, four hundred twenty-one".