1939422529 has 4 divisors (see below), whose sum is σ = 2115733680. Its totient is φ = 1763111380.

The previous prime is 1939422521. The next prime is 1939422557. The reversal of 1939422529 is 9252249391.

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 a cyclic number.

It is not a de Polignac number, because 1939422529 - 2³ = 1939422521 is a prime.

It is a super-2 number, since 2×1939422529² = 7522719491985511682, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1939422521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88155559 + ... + 88155580.

It is an arithmetic number, because the mean of its divisors is an integer number (528933420).

Almost surely, 2^1939422529 is an apocalyptic number.

It is an amenable number.

1939422529 is a deficient number, since it is larger than the sum of its proper divisors (176311151).

1939422529 is a wasteful number, since it uses less digits than its factorization.

1939422529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176311150.

The product of its digits is 349920, while the sum is 46.

The square root of 1939422529 is about 44038.8752013491. The cubic root of 1939422529 is about 1247.0699433676.

The spelling of 1939422529 in words is "one billion, nine hundred thirty-nine million, four hundred twenty-two thousand, five hundred twenty-nine".