1029979438 has 4 divisors (see below), whose sum is σ = 1544969160. Its totient is φ = 514989718.

The previous prime is 1029979429. The next prime is 1029979439. The reversal of 1029979438 is 8349799201.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8349799201 = 307 ⋅27198043.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1029979439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 257494858 + ... + 257494861.

It is an arithmetic number, because the mean of its divisors is an integer number (386242290).

Almost surely, 2^1029979438 is an apocalyptic number.

1029979438 is a deficient number, since it is larger than the sum of its proper divisors (514989722).

1029979438 is an equidigital number, since it uses as much as digits as its factorization.

1029979438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 514989721.

The product of its (nonzero) digits is 979776, while the sum is 52.

The square root of 1029979438 is about 32093.2927260510. The cubic root of 1029979438 is about 1009.8949137472.

The spelling of 1029979438 in words is "one billion, twenty-nine million, nine hundred seventy-nine thousand, four hundred thirty-eight".