2658478044 has 24 divisors (see below), whose sum is σ = 6237391888. Its totient is φ = 881262720.

The previous prime is 2658478019. The next prime is 2658478049. The reversal of 2658478044 is 4408748562.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 2658477984 and 2658478002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2658478049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 609817 + ... + 614160.

Almost surely, 2^2658478044 is an apocalyptic number.

It is an amenable number.

2658478044 is an abundant number, since it is smaller than the sum of its proper divisors (3578913844).

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

2658478044 is a wasteful number, since it uses less digits than its factorization.

2658478044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1224165 (or 1224163 counting only the distinct ones).

The product of its (nonzero) digits is 1720320, while the sum is 48.

The square root of 2658478044 is about 51560.4309912165. The cubic root of 2658478044 is about 1385.3016748705.

The spelling of 2658478044 in words is "two billion, six hundred fifty-eight million, four hundred seventy-eight thousand, forty-four".