1979538064 has 75 divisors (see below), whose sum is σ = 4494112067. Its totient is φ = 844636128.

The previous prime is 1979538061. The next prime is 1979538101. The reversal of 1979538064 is 4608359791.

It is a happy number.

The square root of 1979538064 is 44492.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1979538061) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 8720319 + ... + 8720545.

Almost surely, 2^1979538064 is an apocalyptic number.

1979538064 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1979538064 is the 44492-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1979538064

1979538064 is an abundant number, since it is smaller than the sum of its proper divisors (2514574003).

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

1979538064 is an frugal number, since it uses more digits than its factorization.

1979538064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490 (or 236 counting only the distinct ones).

The product of its (nonzero) digits is 1632960, while the sum is 52.

The cubic root of 1979538064 is about 1255.6095754599.

The spelling of 1979538064 in words is "one billion, nine hundred seventy-nine million, five hundred thirty-eight thousand, sixty-four".