2059390978 has 8 divisors (see below), whose sum is σ = 3195606780. Its totient is φ = 994188720.

The previous prime is 2059390973. The next prime is 2059391021. The reversal of 2059390978 is 8790939502.

It can be written as a sum of positive squares in 2 ways, for example, as 2032837569 + 26553409 = 45087^2 + 5153^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (2059390973) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17753313 + ... + 17753428.

Almost surely, 2^2059390978 is an apocalyptic number.

2059390978 is a deficient number, since it is larger than the sum of its proper divisors (1136215802).

2059390978 is a wasteful number, since it uses less digits than its factorization.

2059390978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35506772.

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

The square root of 2059390978 is about 45380.5131967456. The cubic root of 2059390978 is about 1272.2709235459.

The spelling of 2059390978 in words is "two billion, fifty-nine million, three hundred ninety thousand, nine hundred seventy-eight".