240738451 has 4 divisors (see below), whose sum is σ = 244036312. Its totient is φ = 237440592.

The previous prime is 240738439. The next prime is 240738461. The reversal of 240738451 is 154837042.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 240738451 - 2⁵ = 240738419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (240738461) 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 3 ways as a sum of consecutive naturals, for example, 1648821 + ... + 1648966.

It is an arithmetic number, because the mean of its divisors is an integer number (61009078).

Almost surely, 2^240738451 is an apocalyptic number.

240738451 is a deficient number, since it is larger than the sum of its proper divisors (3297861).

240738451 is an equidigital number, since it uses as much as digits as its factorization.

240738451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3297860.

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 240738451 is about 15515.7484833958. The cubic root of 240738451 is about 622.0832205313.

The spelling of 240738451 in words is "two hundred forty million, seven hundred thirty-eight thousand, four hundred fifty-one".