2420022778 has 8 divisors (see below), whose sum is σ = 3630280500. Its totient is φ = 1209929280.

The previous prime is 2420022749. The next prime is 2420022823. The reversal of 2420022778 is 8772200242.

It can be written as a sum of positive squares in 2 ways, for example, as 1910301849 + 509720929 = 43707^2 + 22577^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7068 + ... + 69928.

Almost surely, 2^2420022778 is an apocalyptic number.

2420022778 is a deficient number, since it is larger than the sum of its proper divisors (1210257722).

2420022778 is a wasteful number, since it uses less digits than its factorization.

2420022778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82112.

The product of its (nonzero) digits is 25088, while the sum is 34.

The square root of 2420022778 is about 49193.7270187978. The cubic root of 2420022778 is about 1342.5789011860.

The spelling of 2420022778 in words is "two billion, four hundred twenty million, twenty-two thousand, seven hundred seventy-eight".