42401322 has 12 divisors (see below), whose sum is σ = 91869570. Its totient is φ = 14133768.

The previous prime is 42401321. The next prime is 42401347. The reversal of 42401322 is 22310424.

It can be written as a sum of positive squares in only one way, i.e., 26409321 + 15992001 = 5139^2 + 3999^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 2355629 = 42401322 / (4 + 2 + 4 + 0 + 1 + 3 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 42401295 and 42401304.

It is not an unprimeable number, because it can be changed into a prime (42401321) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1177797 + ... + 1177832.

Almost surely, 2^42401322 is an apocalyptic number.

42401322 is an abundant number, since it is smaller than the sum of its proper divisors (49468248).

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

42401322 is a wasteful number, since it uses less digits than its factorization.

42401322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2355637 (or 2355634 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 42401322 is about 6511.6297499167. The cubic root of 42401322 is about 348.7063043108.

Adding to 42401322 its reverse (22310424), we get a palindrome (64711746).

The spelling of 42401322 in words is "forty-two million, four hundred one thousand, three hundred twenty-two".