42414421 has 8 divisors (see below), whose sum is σ = 48648384. Its totient is φ = 36224160.

The previous prime is 42414419. The next prime is 42414433. The reversal of 42414421 is 12441424.

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

It is not a de Polignac number, because 42414421 - 2¹ = 42414419 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42414392 and 42414401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42414121) 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, 8815 + ... + 12748.

It is an arithmetic number, because the mean of its divisors is an integer number (6081048).

Almost surely, 2^42414421 is an apocalyptic number.

It is an amenable number.

42414421 is a deficient number, since it is larger than the sum of its proper divisors (6233963).

42414421 is a wasteful number, since it uses less digits than its factorization.

42414421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21851.

The product of its digits is 1024, while the sum is 22.

The square root of 42414421 is about 6512.6354880340. The cubic root of 42414421 is about 348.7422091158.

Adding to 42414421 its reverse (12441424), we get a palindrome (54855845).

The spelling of 42414421 in words is "forty-two million, four hundred fourteen thousand, four hundred twenty-one".