421242412 has 12 divisors (see below), whose sum is σ = 747273016. Its totient is φ = 207735840.

The previous prime is 421242403. The next prime is 421242431. The reversal of 421242412 is 214242124.

It is a nude number because it is divisible by every one of its digits.

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, 721014 + ... + 721597.

Almost surely, 2^421242412 is an apocalyptic number.

It is an amenable number.

421242412 is a deficient number, since it is larger than the sum of its proper divisors (326030604).

421242412 is a wasteful number, since it uses less digits than its factorization.

421242412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1442688 (or 1442686 counting only the distinct ones).

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

The square root of 421242412 is about 20524.1908975726. The cubic root of 421242412 is about 749.6249455138.

Adding to 421242412 its reverse (214242124), we get a palindrome (635484536).

The spelling of 421242412 in words is "four hundred twenty-one million, two hundred forty-two thousand, four hundred twelve".