1979609452 has 24 divisors (see below), whose sum is σ = 3495260160. Its totient is φ = 980980560.

The previous prime is 1979609441. The next prime is 1979609491. The reversal of 1979609452 is 2549069791.

It is a self number, because there is not a number n which added to its sum of digits gives 1979609452.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 766299 + ... + 768877.

It is an arithmetic number, because the mean of its divisors is an integer number (145635840).

Almost surely, 2^1979609452 is an apocalyptic number.

It is an amenable number.

1979609452 is a deficient number, since it is larger than the sum of its proper divisors (1515650708).

1979609452 is a wasteful number, since it uses less digits than its factorization.

1979609452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4221 (or 4219 counting only the distinct ones).

The product of its (nonzero) digits is 1224720, while the sum is 52.

The square root of 1979609452 is about 44492.8022493526. The cubic root of 1979609452 is about 1255.6246689440.

The spelling of 1979609452 in words is "one billion, nine hundred seventy-nine million, six hundred nine thousand, four hundred fifty-two".