240003643 has 32 divisors (see below), whose sum is σ = 286654464. Its totient is φ = 198660000.

The previous prime is 240003601. The next prime is 240003653. The reversal of 240003643 is 346300042.

It is not a de Polignac number, because 240003643 - 2¹³ = 239995451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (240003653) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 556638 + ... + 557068.

It is an arithmetic number, because the mean of its divisors is an integer number (8957952).

Almost surely, 2^240003643 is an apocalyptic number.

240003643 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

240003643 is a deficient number, since it is larger than the sum of its proper divisors (46650821).

240003643 is a wasteful number, since it uses less digits than its factorization.

240003643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 567.

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 240003643 is about 15492.0509617029. The cubic root of 240003643 is about 621.4496455215.

Adding to 240003643 its reverse (346300042), we get a palindrome (586303685).

The spelling of 240003643 in words is "two hundred forty million, three thousand, six hundred forty-three".