240638308 has 24 divisors (see below), whose sum is σ = 433262592. Its totient is φ = 116887104.

The previous prime is 240638273. The next prime is 240638309. The reversal of 240638308 is 803836042.

It is not an unprimeable number, because it can be changed into a prime (240638309) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21085 + ... + 30427.

It is an arithmetic number, because the mean of its divisors is an integer number (18052608).

Almost surely, 2^240638308 is an apocalyptic number.

It is an amenable number.

240638308 is a deficient number, since it is larger than the sum of its proper divisors (192624284).

240638308 is a wasteful number, since it uses less digits than its factorization.

240638308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9531 (or 9529 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 34.

The square root of 240638308 is about 15512.5210072380. The cubic root of 240638308 is about 621.9969499752.

The spelling of 240638308 in words is "two hundred forty million, six hundred thirty-eight thousand, three hundred eight".