1979423030 has 64 divisors (see below), whose sum is σ = 3886360128. Its totient is φ = 721543680.

The previous prime is 1979423023. The next prime is 1979423041. The reversal of 1979423030 is 303249791.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5979965 + ... + 5980295.

It is an arithmetic number, because the mean of its divisors is an integer number (60724377).

Almost surely, 2^1979423030 is an apocalyptic number.

1979423030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1979423030 is a deficient number, since it is larger than the sum of its proper divisors (1906937098).

1979423030 is a wasteful number, since it uses less digits than its factorization.

1979423030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 801.

The product of its (nonzero) digits is 40824, while the sum is 38.

The square root of 1979423030 is about 44490.7072319602. The cubic root of 1979423030 is about 1255.5852531879.

It can be divided in two parts, 19794 and 23030, that added together give a palindrome (42824).

The spelling of 1979423030 in words is "one billion, nine hundred seventy-nine million, four hundred twenty-three thousand, thirty".