240738890 has 32 divisors (see below), whose sum is σ = 498026880. Its totient is φ = 82073664.

The previous prime is 240738881. The next prime is 240738893. The reversal of 240738890 is 98837042.

It is not an unprimeable number, because it can be changed into a prime (240738893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2924 + ... + 22136.

It is an arithmetic number, because the mean of its divisors is an integer number (15563340).

Almost surely, 2^240738890 is an apocalyptic number.

240738890 is an abundant number, since it is smaller than the sum of its proper divisors (257287990).

240738890 is a wasteful number, since it uses less digits than its factorization.

240738890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19406.

The product of its (nonzero) digits is 96768, while the sum is 41.

The square root of 240738890 is about 15515.7626303060. The cubic root of 240738890 is about 622.0835986656.

The spelling of 240738890 in words is "two hundred forty million, seven hundred thirty-eight thousand, eight hundred ninety".