42212401 has 8 divisors (see below), whose sum is σ = 52628544. Its totient is φ = 32892720.

The previous prime is 42212399. The next prime is 42212413. The reversal of 42212401 is 10421224.

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

It is not a de Polignac number, because 42212401 - 2¹ = 42212399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42212431) 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, 274030 + ... + 274183.

It is an arithmetic number, because the mean of its divisors is an integer number (6578568).

Almost surely, 2^42212401 is an apocalyptic number.

It is an amenable number.

42212401 is a deficient number, since it is larger than the sum of its proper divisors (10416143).

42212401 is a wasteful number, since it uses less digits than its factorization.

42212401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 548231.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 42212401 is about 6497.1071254828. The cubic root of 42212401 is about 348.1876410221.

Adding to 42212401 its reverse (10421224), we get a palindrome (52633625).

The spelling of 42212401 in words is "forty-two million, two hundred twelve thousand, four hundred one".