42401312 has 24 divisors (see below), whose sum is σ = 87872400. Its totient is φ = 20084544.

The previous prime is 42401309. The next prime is 42401321. The reversal of 42401312 is 21310424.

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, 34262 + ... + 35477.

It is an arithmetic number, because the mean of its divisors is an integer number (3661350).

Almost surely, 2^42401312 is an apocalyptic number.

It is an amenable number.

42401312 is an abundant number, since it is smaller than the sum of its proper divisors (45471088).

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

42401312 is a wasteful number, since it uses less digits than its factorization.

42401312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69768 (or 69760 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 42401312 is about 6511.6289820597. The cubic root of 42401312 is about 348.7062768977.

Adding to 42401312 its reverse (21310424), we get a palindrome (63711736).

The spelling of 42401312 in words is "forty-two million, four hundred one thousand, three hundred twelve".