1006421442 has 48 divisors (see below), whose sum is σ = 2266114368. Its totient is φ = 296192160.

The previous prime is 1006421413. The next prime is 1006421443. The reversal of 1006421442 is 2441246001.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1006421443) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29067 + ... + 53457.

It is an arithmetic number, because the mean of its divisors is an integer number (47210716).

Almost surely, 2^1006421442 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1006421442, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1133057184).

1006421442 is an abundant number, since it is smaller than the sum of its proper divisors (1259692926).

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

1006421442 is a wasteful number, since it uses less digits than its factorization.

1006421442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24455 (or 24432 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 1006421442 is about 31724.1460405162. The cubic root of 1006421442 is about 1002.1359152845.

Adding to 1006421442 its reverse (2441246001), we get a palindrome (3447667443).

The spelling of 1006421442 in words is "one billion, six million, four hundred twenty-one thousand, four hundred forty-two".