1979249706 has 48 divisors (see below), whose sum is σ = 4960073664. Its totient is φ = 558683712.

The previous prime is 1979249689. The next prime is 1979249771. The reversal of 1979249706 is 6079429791.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 84171 + ... + 105086.

It is an arithmetic number, because the mean of its divisors is an integer number (103334868).

Almost surely, 2^1979249706 is an apocalyptic number.

1979249706 is an abundant number, since it is smaller than the sum of its proper divisors (2980823958).

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

1979249706 is a wasteful number, since it uses less digits than its factorization.

1979249706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189355 (or 189352 counting only the distinct ones).

The product of its (nonzero) digits is 1714608, while the sum is 54.

The square root of 1979249706 is about 44488.7593218782. The cubic root of 1979249706 is about 1255.5486045606.

The spelling of 1979249706 in words is "one billion, nine hundred seventy-nine million, two hundred forty-nine thousand, seven hundred six".