1239420022 has 16 divisors (see below), whose sum is σ = 1885680720. Its totient is φ = 610910208.

The previous prime is 1239420011. The next prime is 1239420031. The reversal of 1239420022 is 2200249321.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 37429 + ... + 62287.

It is an arithmetic number, because the mean of its divisors is an integer number (117855045).

Almost surely, 2^1239420022 is an apocalyptic number.

1239420022 is a deficient number, since it is larger than the sum of its proper divisors (646260698).

1239420022 is a wasteful number, since it uses less digits than its factorization.

1239420022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25215.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 1239420022 is about 35205.3976259323. The cubic root of 1239420022 is about 1074.1695470545.

Adding to 1239420022 its reverse (2200249321), we get a palindrome (3439669343).

The spelling of 1239420022 in words is "one billion, two hundred thirty-nine million, four hundred twenty thousand, twenty-two".