240838642 has 24 divisors (see below), whose sum is σ = 417992400. Its totient is φ = 103708440.

The previous prime is 240838621. The next prime is 240838679. The reversal of 240838642 is 246838042.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21592 + ... + 30787.

It is an arithmetic number, because the mean of its divisors is an integer number (17416350).

Almost surely, 2^240838642 is an apocalyptic number.

240838642 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

240838642 is a deficient number, since it is larger than the sum of its proper divisors (177153758).

240838642 is a wasteful number, since it uses less digits than its factorization.

240838642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52422 (or 52411 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 37.

The square root of 240838642 is about 15518.9768348303. The cubic root of 240838642 is about 622.1695084996.

The spelling of 240838642 in words is "two hundred forty million, eight hundred thirty-eight thousand, six hundred forty-two".