1979412480 has 156 divisors (see below), whose sum is σ = 6861764520. Its totient is φ = 527794176.

The previous prime is 1979412467. The next prime is 1979412497. The reversal of 1979412480 is 842149791.

It is a happy number.

1979412480 is a `hidden beast` number, since 197 + 9 + 412 + 48 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 178951 + ... + 189689.

It is an arithmetic number, because the mean of its divisors is an integer number (43985670).

Almost surely, 2^1979412480 is an apocalyptic number.

1979412480 is a gapful number since it is divisible by the number (10) 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 1979412480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3430882260).

1979412480 is an abundant number, since it is smaller than the sum of its proper divisors (4882352040).

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

1979412480 is a wasteful number, since it uses less digits than its factorization.

1979412480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10774 (or 10749 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The square root of 1979412480 is about 44490.5886677171. The cubic root of 1979412480 is about 1255.5830224961.

The spelling of 1979412480 in words is "one billion, nine hundred seventy-nine million, four hundred twelve thousand, four hundred eighty".