4458778402 has 16 divisors (see below), whose sum is σ = 7203877632. Its totient is φ = 2057544720.

The previous prime is 4458778369. The next prime is 4458778417. The reversal of 4458778402 is 2048778544.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 197583 + ... + 218989.

It is an arithmetic number, because the mean of its divisors is an integer number (450242352).

Almost surely, 2^4458778402 is an apocalyptic number.

4458778402 is a deficient number, since it is larger than the sum of its proper divisors (2745099230).

4458778402 is a wasteful number, since it uses less digits than its factorization.

4458778402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29433.

The product of its (nonzero) digits is 2007040, while the sum is 49.

The square root of 4458778402 is about 66774.0848084045. The cubic root of 4458778402 is about 1645.9070150677.

The spelling of 4458778402 in words is "four billion, four hundred fifty-eight million, seven hundred seventy-eight thousand, four hundred two".