2440638578 has 32 divisors (see below), whose sum is σ = 4407312000. Its totient is φ = 990226944.

The previous prime is 2440638539. The next prime is 2440638593. The reversal of 2440638578 is 8758360442.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 534248 + ... + 538796.

It is an arithmetic number, because the mean of its divisors is an integer number (137728500).

Almost surely, 2^2440638578 is an apocalyptic number.

2440638578 is a deficient number, since it is larger than the sum of its proper divisors (1966673422).

2440638578 is a wasteful number, since it uses less digits than its factorization.

2440638578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6594.

The product of its (nonzero) digits is 1290240, while the sum is 47.

The square root of 2440638578 is about 49402.8195349213. The cubic root of 2440638578 is about 1346.3805337442.

The spelling of 2440638578 in words is "two billion, four hundred forty million, six hundred thirty-eight thousand, five hundred seventy-eight".