412142421 has 4 divisors (see below), whose sum is σ = 549523232. Its totient is φ = 274761612.

The previous prime is 412142417. The next prime is 412142431. The reversal of 412142421 is 124241214.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 412142421 - 2² = 412142417 is a prime.

It is a super-2 number, since 2×412142421² = 339722750375482482, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (412142431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68690401 + ... + 68690406.

It is an arithmetic number, because the mean of its divisors is an integer number (137380808).

Almost surely, 2^412142421 is an apocalyptic number.

It is an amenable number.

412142421 is a deficient number, since it is larger than the sum of its proper divisors (137380811).

412142421 is a wasteful number, since it uses less digits than its factorization.

412142421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137380810.

The product of its digits is 512, while the sum is 21.

The square root of 412142421 is about 20301.2911165768. The cubic root of 412142421 is about 744.1876170816.

Adding to 412142421 its reverse (124241214), we get a palindrome (536383635).

The spelling of 412142421 in words is "four hundred twelve million, one hundred forty-two thousand, four hundred twenty-one".