2979217242 has 72 divisors (see below), whose sum is σ = 6718514868. Its totient is φ = 954046080.

The previous prime is 2979217229. The next prime is 2979217249. The reversal of 2979217242 is 2427129792.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2839717521 + 139499721 = 53289^2 + 11811^2 .

It is not an unprimeable number, because it can be changed into a prime (2979217249) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2715238 + ... + 2716334.

Almost surely, 2^2979217242 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2979217242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3359257434).

2979217242 is an abundant number, since it is smaller than the sum of its proper divisors (3739297626).

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

2979217242 is a wasteful number, since it uses less digits than its factorization.

2979217242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1324 (or 1290 counting only the distinct ones).

The product of its digits is 254016, while the sum is 45.

The square root of 2979217242 is about 54582.2062764048. The cubic root of 2979217242 is about 1438.9114139669.

The spelling of 2979217242 in words is "two billion, nine hundred seventy-nine million, two hundred seventeen thousand, two hundred forty-two".