1979959464 has 240 divisors, whose sum is σ = 6515182080. Its totient is φ = 560105280.

The previous prime is 1979959447. The next prime is 1979959489. The reversal of 1979959464 is 4649599791.

1979959464 is a `hidden beast` number, since 19 + 79 + 95 + 9 + 464 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

Its product of digits (22044960) is a multiple of the sum of its prime divisors (630).

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 59 ways as a sum of consecutive naturals, for example, 4032259 + ... + 4032749.

It is an arithmetic number, because the mean of its divisors is an integer number (27146592).

Almost surely, 2^1979959464 is an apocalyptic number.

1979959464 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1979959464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3257591040).

1979959464 is an abundant number, since it is smaller than the sum of its proper divisors (4535222616).

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

1979959464 is a wasteful number, since it uses less digits than its factorization.

1979959464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 650 (or 630 counting only the distinct ones).

The product of its digits is 22044960, while the sum is 63.

The square root of 1979959464 is about 44496.7354308156. The cubic root of 1979959464 is about 1255.6986663348.

The spelling of 1979959464 in words is "one billion, nine hundred seventy-nine million, nine hundred fifty-nine thousand, four hundred sixty-four".