424421442 has 12 divisors (see below), whose sum is σ = 919579830. Its totient is φ = 141473808.

The previous prime is 424421423. The next prime is 424421443. The reversal of 424421442 is 244124424.

It can be written as a sum of positive squares in only one way, i.e., 396447921 + 27973521 = 19911^2 + 5289^2 .

It is not an unprimeable number, because it can be changed into a prime (424421443) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11789467 + ... + 11789502.

Almost surely, 2^424421442 is an apocalyptic number.

424421442 is an abundant number, since it is smaller than the sum of its proper divisors (495158388).

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

424421442 is a wasteful number, since it uses less digits than its factorization.

424421442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23578977 (or 23578974 counting only the distinct ones).

The product of its digits is 8192, while the sum is 27.

The square root of 424421442 is about 20601.4912567028. The cubic root of 424421442 is about 751.5059766883.

Adding to 424421442 its reverse (244124424), we get a palindrome (668545866).

The spelling of 424421442 in words is "four hundred twenty-four million, four hundred twenty-one thousand, four hundred forty-two".