2978358106 has 12 divisors (see below), whose sum is σ = 4573855242. Its totient is φ = 1454545176.

The previous prime is 2978358043. The next prime is 2978358107. The reversal of 2978358106 is 6018538792.

It can be written as a sum of positive squares in only one way, i.e., 2949467481 + 28890625 = 54309^2 + 5375^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2978358106.

It is not an unprimeable number, because it can be changed into a prime (2978358107) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 399001 + ... + 406396.

Almost surely, 2^2978358106 is an apocalyptic number.

2978358106 is a deficient number, since it is larger than the sum of its proper divisors (1595497136).

2978358106 is an equidigital number, since it uses as much as digits as its factorization.

2978358106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 805485 (or 805442 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 49.

The square root of 2978358106 is about 54574.3355983378. The cubic root of 2978358106 is about 1438.7730846288.

The spelling of 2978358106 in words is "two billion, nine hundred seventy-eight million, three hundred fifty-eight thousand, one hundred six".